From 0d17fa02846427d5bb824a55ed58bf66ba29eda2 Mon Sep 17 00:00:00 2001 From: gnat Date: Fri, 23 Aug 2024 13:53:33 -0700 Subject: [PATCH] initial --- .gitignore | 4 + LICENSE | 34 + Makefile | 71 ++ README.md | 136 +++ arg.h | 50 + boxdraw.c | 194 ++++ boxdraw_data.h | 214 ++++ config.def.h | 578 ++++++++++ config.h | 578 ++++++++++ config.mk | 41 + default.nix | 42 + flake.lock | 43 + flake.nix | 35 + hb.c | 140 +++ hb.h | 7 + normalMode.c | 284 +++++ normalMode.h | 8 + st.1 | 197 ++++ st.c | 2831 ++++++++++++++++++++++++++++++++++++++++++++++++ st.desktop | 8 + st.h | 158 +++ st.info | 222 ++++ st.png | Bin 0 -> 836 bytes utils.h | 23 + win.h | 41 + x.c | 2432 +++++++++++++++++++++++++++++++++++++++++ xresources | 49 + 27 files changed, 8420 insertions(+) create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 Makefile create mode 100644 README.md create mode 100644 arg.h create mode 100644 boxdraw.c create mode 100644 boxdraw_data.h create mode 100644 config.def.h create mode 100644 config.h create mode 100644 config.mk create mode 100644 default.nix create mode 100644 flake.lock create mode 100644 flake.nix create mode 100644 hb.c create mode 100644 hb.h create mode 100644 normalMode.c create mode 100644 normalMode.h create mode 100644 st.1 create mode 100644 st.c create mode 100644 st.desktop create mode 100644 st.h create mode 100644 st.info create mode 100644 st.png create mode 100644 utils.h create mode 100644 win.h create mode 100644 x.c create mode 100644 xresources diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..56781d1 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +st +st-copyout +st-urlhandler +*.o diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..c356c39 --- /dev/null +++ b/LICENSE @@ -0,0 +1,34 @@ +MIT/X Consortium License + +© 2014-2018 Hiltjo Posthuma +© 2018 Devin J. Pohly +© 2014-2017 Quentin Rameau +© 2009-2012 Aurélien APTEL +© 2008-2017 Anselm R Garbe +© 2012-2017 Roberto E. Vargas Caballero +© 2012-2016 Christoph Lohmann <20h at r-36 dot net> +© 2013 Eon S. Jeon +© 2013 Alexander Sedov +© 2013 Mark Edgar +© 2013-2014 Eric Pruitt +© 2013 Michael Forney +© 2013-2014 Markus Teich +© 2014-2015 Laslo Hunhold + +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the "Software"), +to deal in the Software without restriction, including without limitation +the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..d79bd9d --- /dev/null +++ b/Makefile @@ -0,0 +1,71 @@ +# st - simple terminal +# See LICENSE file for copyright and license details. +.POSIX: + +include config.mk + +SRC = st.c x.c boxdraw.c hb.c +OBJ = $(SRC:.c=.o) + +all: options st + +options: + @echo st build options: + @echo "CFLAGS = $(STCFLAGS)" + @echo "LDFLAGS = $(STLDFLAGS)" + @echo "CC = $(CC)" + +config.h: + cp config.def.h config.h + +.c.o: + $(CC) $(STCFLAGS) -c $< + +st.o: config.h st.h win.h +x.o: arg.h config.h st.h win.h hb.h +hb.o: st.h +boxdraw.o: config.h st.h boxdraw_data.h + +$(OBJ): config.h config.mk + +st: $(OBJ) + $(CC) -o $@ $(OBJ) $(STLDFLAGS) + +clean: + rm -f st $(OBJ) st-$(VERSION).tar.gz *.o *.orig *.rej + +dist: clean + mkdir -p st-$(VERSION) + cp -R FAQ LEGACY TODO LICENSE Makefile README config.mk\ + config.def.h st.info st.1 arg.h st.h win.h $(SRC)\ + st-$(VERSION) + tar -cf - st-$(VERSION) | gzip > st-$(VERSION).tar.gz + rm -rf st-$(VERSION) + +install: st + mkdir -p $(DESTDIR)$(PREFIX)/bin + cp -f st $(DESTDIR)$(PREFIX)/bin + cp -f st-copyout $(DESTDIR)$(PREFIX)/bin + cp -f st-urlhandler $(DESTDIR)$(PREFIX)/bin + chmod 755 $(DESTDIR)$(PREFIX)/bin/st + chmod 755 $(DESTDIR)$(PREFIX)/bin/st-copyout + chmod 755 $(DESTDIR)$(PREFIX)/bin/st-urlhandler + mkdir -p $(DESTDIR)$(MANPREFIX)/man1 + sed "s/VERSION/$(VERSION)/g" < st.1 > $(DESTDIR)$(MANPREFIX)/man1/st.1 + chmod 644 $(DESTDIR)$(MANPREFIX)/man1/st.1 + tic -sx st.info + @echo Please see the README file regarding the terminfo entry of st. + mkdir -p $(DESTDIR)$(ICONPREFIX) + [ -f $(ICONNAME) ] && cp -f $(ICONNAME) $(DESTDIR)$(ICONPREFIX) || : + mkdir -p $(DESTDIR)$(PREFIX)/share/applications + cp -f st.desktop $(DESTDIR)$(PREFIX)/share/applications + +uninstall: + rm -f $(DESTDIR)$(PREFIX)/bin/st + rm -f $(DESTDIR)$(PREFIX)/bin/st-copyout + rm -f $(DESTDIR)$(PREFIX)/bin/st-urlhandler + rm -f $(DESTDIR)$(MANPREFIX)/man1/st.1 + rm -f $(DESTDIR)$(ICONPREFIX)/$(ICONNAME) + rm -f $(DESTDIR)$(PREFIX)/share/applications/st.desktop + +.PHONY: all options clean dist install uninstall diff --git a/README.md b/README.md new file mode 100644 index 0000000..cb5b795 --- /dev/null +++ b/README.md @@ -0,0 +1,136 @@ +# St (Suckless Terminal) + +## Xresources live-reload demo + +

+ +## Dependencies + +``` +# Void +xbps-install libXft-devel libX11-devel harfbuzz-devel libXext-devel libXrender-devel libXinerama-devel + +# Debian (and ubuntu probably) +apt install build-essential libxft-dev libharfbuzz-dev libgd-dev + +# Nix +nix develop github:siduck/st + +# Arch +pacman -S gd + +# Fedora (or Red-Hat based) +dnf install gd-devel libXft-devel + +# SUSE (or openSUSE) +zypper in -t pattern devel_basis +zypper in gd-devel libXft-devel harfbuzz-devel + +# Install font-symbola and libXft-bgra +``` + +## Try it out! + +Before you install st on your system, you might want to try it out first. +To do so, simply run (requires [Nix](https://nixos.org/download.html)) +`nix run github:siduck/st` + +## Install + +``` +git clone https://github.com/siduck/st.git +cd st +(change the compiler if you cant use c99 to compile: sed -i 's/^#\ CC\ =\ c99/CC=gcc/' config.mk) +sudo make install +xrdb merge pathToXresourcesFile +``` + +(note : put the xrdb merge command in your wm's autostart or similar) + +### Using Nix flakes + +Add `st.url = "github:siduck/st";` to your inputs and install `inputs.st.packages."${system}".st-snazzy` package + +## Fonts + +- Install JetbrainsMono Mono Nerd Font or any nerd font from [here](https://www.nerdfonts.com/font-downloads) + +## Patches: + +- Ligatures +- sixel (check sixel branch) +- scrollback +- Clipboard +- Alpha(Transparency) +- Boxdraw +- patch_column ( doesnt cut text while resizing) +- font2 +- right click paste +- st desktop entry +- newterm +- anygeometry +- xresources +- sync patch ( Better draw timing to reduce flicker/tearing and improve animation smoothness ) +- live reload ( change colors/fonts on the fly ) + and more... +
+ +## Xresources live-reload + +``` +# make an alias for this command + +alias rel="xrdb merge pathToXresourcesFile && kill -USR1 $(pidof st)" +``` + +## Ram usage comparison with other terminals and speed test + +

+

+

+ +( note : This benchmark was done on my low-end machine which has a pentium cpu so the speed results might vary ) + +## Default Keybindings
+ +
+ctrl + shift + c        Copy  

+ctrl + shift + v        Paste 

+right click on the terminal ( will paste the copied thing )
+
+(Zoom)
+alt  + comma            Zoom in 

+alt  + .                Zoom out 

+alt  + g                Reset Zoom

+
+(Transparency)
+alt  + s                Increase Transparency

+alt  + a                Decrease Transparency

+alt  + m                Reset Transparency

+
+alt + k                 scroll down
+alt + j                 scroll up
+
+mod + shift + enter    open a new terminal with same cwd ( current working directory )
+
+ +you can change all of these in config.h +
+ +## Themes/Fonts used + +- ls-icons: https://github.com/Yash-Handa/logo-ls
+- Xresources: onedark (just `xrdb merge xresourcesfile`, do this everytime you make any change to xresources file) from this repo itself.
+- Font: JetbrainsMono Nerd Font + material design icon fonts + +## Screenshots: + +

+

+

+
+ +# Credits + +- [live-reload](https://github.com/nimaipatel/st) +- [patch_column](https://github.com/nimaipatel/st/blob/all/patches/7672445bab01cb4e861651dc540566ac22e25812.diff) diff --git a/arg.h b/arg.h new file mode 100644 index 0000000..a22e019 --- /dev/null +++ b/arg.h @@ -0,0 +1,50 @@ +/* + * Copy me if you can. + * by 20h + */ + +#ifndef ARG_H__ +#define ARG_H__ + +extern char *argv0; + +/* use main(int argc, char *argv[]) */ +#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ + argv[0] && argv[0][0] == '-'\ + && argv[0][1];\ + argc--, argv++) {\ + char argc_;\ + char **argv_;\ + int brk_;\ + if (argv[0][1] == '-' && argv[0][2] == '\0') {\ + argv++;\ + argc--;\ + break;\ + }\ + int i_;\ + for (i_ = 1, brk_ = 0, argv_ = argv;\ + argv[0][i_] && !brk_;\ + i_++) {\ + if (argv_ != argv)\ + break;\ + argc_ = argv[0][i_];\ + switch (argc_) + +#define ARGEND }\ + } + +#define ARGC() argc_ + +#define EARGF(x) ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\ + ((x), abort(), (char *)0) :\ + (brk_ = 1, (argv[0][i_+1] != '\0')?\ + (&argv[0][i_+1]) :\ + (argc--, argv++, argv[0]))) + +#define ARGF() ((argv[0][i_+1] == '\0' && argv[1] == NULL)?\ + (char *)0 :\ + (brk_ = 1, (argv[0][i_+1] != '\0')?\ + (&argv[0][i_+1]) :\ + (argc--, argv++, argv[0]))) + +#endif diff --git a/boxdraw.c b/boxdraw.c new file mode 100644 index 0000000..28a92d0 --- /dev/null +++ b/boxdraw.c @@ -0,0 +1,194 @@ +/* + * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih + * MIT/X Consortium License + */ + +#include +#include "st.h" +#include "boxdraw_data.h" + +/* Rounded non-negative integers division of n / d */ +#define DIV(n, d) (((n) + (d) / 2) / (d)) + +static Display *xdpy; +static Colormap xcmap; +static XftDraw *xd; +static Visual *xvis; + +static void drawbox(int, int, int, int, XftColor *, XftColor *, ushort); +static void drawboxlines(int, int, int, int, XftColor *, ushort); + +/* public API */ + +void +boxdraw_xinit(Display *dpy, Colormap cmap, XftDraw *draw, Visual *vis) +{ + xdpy = dpy; xcmap = cmap; xd = draw, xvis = vis; +} + +int +isboxdraw(Rune u) +{ + Rune block = u & ~0xff; + return (boxdraw && block == 0x2500 && boxdata[(uint8_t)u]) || + (boxdraw_braille && block == 0x2800); +} + +/* the "index" is actually the entire shape data encoded as ushort */ +ushort +boxdrawindex(const Glyph *g) +{ + if (boxdraw_braille && (g->u & ~0xff) == 0x2800) + return BRL | (uint8_t)g->u; + if (boxdraw_bold && (g->mode & ATTR_BOLD)) + return BDB | boxdata[(uint8_t)g->u]; + return boxdata[(uint8_t)g->u]; +} + +void +drawboxes(int x, int y, int cw, int ch, XftColor *fg, XftColor *bg, + const XftGlyphFontSpec *specs, int len) +{ + for ( ; len-- > 0; x += cw, specs++) + drawbox(x, y, cw, ch, fg, bg, (ushort)specs->glyph); +} + +/* implementation */ + +void +drawbox(int x, int y, int w, int h, XftColor *fg, XftColor *bg, ushort bd) +{ + ushort cat = bd & ~(BDB | 0xff); /* mask out bold and data */ + if (bd & (BDL | BDA)) { + /* lines (light/double/heavy/arcs) */ + drawboxlines(x, y, w, h, fg, bd); + + } else if (cat == BBD) { + /* lower (8-X)/8 block */ + int d = DIV((uint8_t)bd * h, 8); + XftDrawRect(xd, fg, x, y + d, w, h - d); + + } else if (cat == BBU) { + /* upper X/8 block */ + XftDrawRect(xd, fg, x, y, w, DIV((uint8_t)bd * h, 8)); + + } else if (cat == BBL) { + /* left X/8 block */ + XftDrawRect(xd, fg, x, y, DIV((uint8_t)bd * w, 8), h); + + } else if (cat == BBR) { + /* right (8-X)/8 block */ + int d = DIV((uint8_t)bd * w, 8); + XftDrawRect(xd, fg, x + d, y, w - d, h); + + } else if (cat == BBQ) { + /* Quadrants */ + int w2 = DIV(w, 2), h2 = DIV(h, 2); + if (bd & TL) + XftDrawRect(xd, fg, x, y, w2, h2); + if (bd & TR) + XftDrawRect(xd, fg, x + w2, y, w - w2, h2); + if (bd & BL) + XftDrawRect(xd, fg, x, y + h2, w2, h - h2); + if (bd & BR) + XftDrawRect(xd, fg, x + w2, y + h2, w - w2, h - h2); + + } else if (bd & BBS) { + /* Shades - data is 1/2/3 for 25%/50%/75% alpha, respectively */ + int d = (uint8_t)bd; + XftColor xfc; + XRenderColor xrc = { .alpha = 0xffff }; + + xrc.red = DIV(fg->color.red * d + bg->color.red * (4 - d), 4); + xrc.green = DIV(fg->color.green * d + bg->color.green * (4 - d), 4); + xrc.blue = DIV(fg->color.blue * d + bg->color.blue * (4 - d), 4); + + XftColorAllocValue(xdpy, xvis, xcmap, &xrc, &xfc); + XftDrawRect(xd, &xfc, x, y, w, h); + XftColorFree(xdpy, xvis, xcmap, &xfc); + + } else if (cat == BRL) { + /* braille, each data bit corresponds to one dot at 2x4 grid */ + int w1 = DIV(w, 2); + int h1 = DIV(h, 4), h2 = DIV(h, 2), h3 = DIV(3 * h, 4); + + if (bd & 1) XftDrawRect(xd, fg, x, y, w1, h1); + if (bd & 2) XftDrawRect(xd, fg, x, y + h1, w1, h2 - h1); + if (bd & 4) XftDrawRect(xd, fg, x, y + h2, w1, h3 - h2); + if (bd & 8) XftDrawRect(xd, fg, x + w1, y, w - w1, h1); + if (bd & 16) XftDrawRect(xd, fg, x + w1, y + h1, w - w1, h2 - h1); + if (bd & 32) XftDrawRect(xd, fg, x + w1, y + h2, w - w1, h3 - h2); + if (bd & 64) XftDrawRect(xd, fg, x, y + h3, w1, h - h3); + if (bd & 128) XftDrawRect(xd, fg, x + w1, y + h3, w - w1, h - h3); + + } +} + +void +drawboxlines(int x, int y, int w, int h, XftColor *fg, ushort bd) +{ + /* s: stem thickness. width/8 roughly matches underscore thickness. */ + /* We draw bold as 1.5 * normal-stem and at least 1px thicker. */ + /* doubles draw at least 3px, even when w or h < 3. bold needs 6px. */ + int mwh = MIN(w, h); + int base_s = MAX(1, DIV(mwh, 8)); + int bold = (bd & BDB) && mwh >= 6; /* possibly ignore boldness */ + int s = bold ? MAX(base_s + 1, DIV(3 * base_s, 2)) : base_s; + int w2 = DIV(w - s, 2), h2 = DIV(h - s, 2); + /* the s-by-s square (x + w2, y + h2, s, s) is the center texel. */ + /* The base length (per direction till edge) includes this square. */ + + int light = bd & (LL | LU | LR | LD); + int double_ = bd & (DL | DU | DR | DD); + + if (light) { + /* d: additional (negative) length to not-draw the center */ + /* texel - at arcs and avoid drawing inside (some) doubles */ + int arc = bd & BDA; + int multi_light = light & (light - 1); + int multi_double = double_ & (double_ - 1); + /* light crosses double only at DH+LV, DV+LH (ref. shapes) */ + int d = arc || (multi_double && !multi_light) ? -s : 0; + + if (bd & LL) + XftDrawRect(xd, fg, x, y + h2, w2 + s + d, s); + if (bd & LU) + XftDrawRect(xd, fg, x + w2, y, s, h2 + s + d); + if (bd & LR) + XftDrawRect(xd, fg, x + w2 - d, y + h2, w - w2 + d, s); + if (bd & LD) + XftDrawRect(xd, fg, x + w2, y + h2 - d, s, h - h2 + d); + } + + /* double lines - also align with light to form heavy when combined */ + if (double_) { + /* + * going clockwise, for each double-ray: p is additional length + * to the single-ray nearer to the previous direction, and n to + * the next. p and n adjust from the base length to lengths + * which consider other doubles - shorter to avoid intersections + * (p, n), or longer to draw the far-corner texel (n). + */ + int dl = bd & DL, du = bd & DU, dr = bd & DR, dd = bd & DD; + if (dl) { + int p = dd ? -s : 0, n = du ? -s : dd ? s : 0; + XftDrawRect(xd, fg, x, y + h2 + s, w2 + s + p, s); + XftDrawRect(xd, fg, x, y + h2 - s, w2 + s + n, s); + } + if (du) { + int p = dl ? -s : 0, n = dr ? -s : dl ? s : 0; + XftDrawRect(xd, fg, x + w2 - s, y, s, h2 + s + p); + XftDrawRect(xd, fg, x + w2 + s, y, s, h2 + s + n); + } + if (dr) { + int p = du ? -s : 0, n = dd ? -s : du ? s : 0; + XftDrawRect(xd, fg, x + w2 - p, y + h2 - s, w - w2 + p, s); + XftDrawRect(xd, fg, x + w2 - n, y + h2 + s, w - w2 + n, s); + } + if (dd) { + int p = dr ? -s : 0, n = dl ? -s : dr ? s : 0; + XftDrawRect(xd, fg, x + w2 + s, y + h2 - p, s, h - h2 + p); + XftDrawRect(xd, fg, x + w2 - s, y + h2 - n, s, h - h2 + n); + } + } +} diff --git a/boxdraw_data.h b/boxdraw_data.h new file mode 100644 index 0000000..7890500 --- /dev/null +++ b/boxdraw_data.h @@ -0,0 +1,214 @@ +/* + * Copyright 2018 Avi Halachmi (:avih) avihpit@yahoo.com https://github.com/avih + * MIT/X Consortium License + */ + +/* + * U+25XX codepoints data + * + * References: + * http://www.unicode.org/charts/PDF/U2500.pdf + * http://www.unicode.org/charts/PDF/U2580.pdf + * + * Test page: + * https://github.com/GNOME/vte/blob/master/doc/boxes.txt + */ + +/* Each shape is encoded as 16-bits. Higher bits are category, lower are data */ +/* Categories (mutually exclusive except BDB): */ +/* For convenience, BDL/BDA/BBS/BDB are 1 bit each, the rest are enums */ +#define BDL (1<<8) /* Box Draw Lines (light/double/heavy) */ +#define BDA (1<<9) /* Box Draw Arc (light) */ + +#define BBD (1<<10) /* Box Block Down (lower) X/8 */ +#define BBL (2<<10) /* Box Block Left X/8 */ +#define BBU (3<<10) /* Box Block Upper X/8 */ +#define BBR (4<<10) /* Box Block Right X/8 */ +#define BBQ (5<<10) /* Box Block Quadrants */ +#define BRL (6<<10) /* Box Braille (data is lower byte of U28XX) */ + +#define BBS (1<<14) /* Box Block Shades */ +#define BDB (1<<15) /* Box Draw is Bold */ + +/* (BDL/BDA) Light/Double/Heavy x Left/Up/Right/Down/Horizontal/Vertical */ +/* Heavy is light+double (literally drawing light+double align to form heavy) */ +#define LL (1<<0) +#define LU (1<<1) +#define LR (1<<2) +#define LD (1<<3) +#define LH (LL+LR) +#define LV (LU+LD) + +#define DL (1<<4) +#define DU (1<<5) +#define DR (1<<6) +#define DD (1<<7) +#define DH (DL+DR) +#define DV (DU+DD) + +#define HL (LL+DL) +#define HU (LU+DU) +#define HR (LR+DR) +#define HD (LD+DD) +#define HH (HL+HR) +#define HV (HU+HD) + +/* (BBQ) Quadrants Top/Bottom x Left/Right */ +#define TL (1<<0) +#define TR (1<<1) +#define BL (1<<2) +#define BR (1<<3) + +/* Data for U+2500 - U+259F except dashes/diagonals */ +static const unsigned short boxdata[256] = { + /* light lines */ + [0x00] = BDL + LH, /* light horizontal */ + [0x02] = BDL + LV, /* light vertical */ + [0x0c] = BDL + LD + LR, /* light down and right */ + [0x10] = BDL + LD + LL, /* light down and left */ + [0x14] = BDL + LU + LR, /* light up and right */ + [0x18] = BDL + LU + LL, /* light up and left */ + [0x1c] = BDL + LV + LR, /* light vertical and right */ + [0x24] = BDL + LV + LL, /* light vertical and left */ + [0x2c] = BDL + LH + LD, /* light horizontal and down */ + [0x34] = BDL + LH + LU, /* light horizontal and up */ + [0x3c] = BDL + LV + LH, /* light vertical and horizontal */ + [0x74] = BDL + LL, /* light left */ + [0x75] = BDL + LU, /* light up */ + [0x76] = BDL + LR, /* light right */ + [0x77] = BDL + LD, /* light down */ + + /* heavy [+light] lines */ + [0x01] = BDL + HH, + [0x03] = BDL + HV, + [0x0d] = BDL + HR + LD, + [0x0e] = BDL + HD + LR, + [0x0f] = BDL + HD + HR, + [0x11] = BDL + HL + LD, + [0x12] = BDL + HD + LL, + [0x13] = BDL + HD + HL, + [0x15] = BDL + HR + LU, + [0x16] = BDL + HU + LR, + [0x17] = BDL + HU + HR, + [0x19] = BDL + HL + LU, + [0x1a] = BDL + HU + LL, + [0x1b] = BDL + HU + HL, + [0x1d] = BDL + HR + LV, + [0x1e] = BDL + HU + LD + LR, + [0x1f] = BDL + HD + LR + LU, + [0x20] = BDL + HV + LR, + [0x21] = BDL + HU + HR + LD, + [0x22] = BDL + HD + HR + LU, + [0x23] = BDL + HV + HR, + [0x25] = BDL + HL + LV, + [0x26] = BDL + HU + LD + LL, + [0x27] = BDL + HD + LU + LL, + [0x28] = BDL + HV + LL, + [0x29] = BDL + HU + HL + LD, + [0x2a] = BDL + HD + HL + LU, + [0x2b] = BDL + HV + HL, + [0x2d] = BDL + HL + LD + LR, + [0x2e] = BDL + HR + LL + LD, + [0x2f] = BDL + HH + LD, + [0x30] = BDL + HD + LH, + [0x31] = BDL + HD + HL + LR, + [0x32] = BDL + HR + HD + LL, + [0x33] = BDL + HH + HD, + [0x35] = BDL + HL + LU + LR, + [0x36] = BDL + HR + LU + LL, + [0x37] = BDL + HH + LU, + [0x38] = BDL + HU + LH, + [0x39] = BDL + HU + HL + LR, + [0x3a] = BDL + HU + HR + LL, + [0x3b] = BDL + HH + HU, + [0x3d] = BDL + HL + LV + LR, + [0x3e] = BDL + HR + LV + LL, + [0x3f] = BDL + HH + LV, + [0x40] = BDL + HU + LH + LD, + [0x41] = BDL + HD + LH + LU, + [0x42] = BDL + HV + LH, + [0x43] = BDL + HU + HL + LD + LR, + [0x44] = BDL + HU + HR + LD + LL, + [0x45] = BDL + HD + HL + LU + LR, + [0x46] = BDL + HD + HR + LU + LL, + [0x47] = BDL + HH + HU + LD, + [0x48] = BDL + HH + HD + LU, + [0x49] = BDL + HV + HL + LR, + [0x4a] = BDL + HV + HR + LL, + [0x4b] = BDL + HV + HH, + [0x78] = BDL + HL, + [0x79] = BDL + HU, + [0x7a] = BDL + HR, + [0x7b] = BDL + HD, + [0x7c] = BDL + HR + LL, + [0x7d] = BDL + HD + LU, + [0x7e] = BDL + HL + LR, + [0x7f] = BDL + HU + LD, + + /* double [+light] lines */ + [0x50] = BDL + DH, + [0x51] = BDL + DV, + [0x52] = BDL + DR + LD, + [0x53] = BDL + DD + LR, + [0x54] = BDL + DR + DD, + [0x55] = BDL + DL + LD, + [0x56] = BDL + DD + LL, + [0x57] = BDL + DL + DD, + [0x58] = BDL + DR + LU, + [0x59] = BDL + DU + LR, + [0x5a] = BDL + DU + DR, + [0x5b] = BDL + DL + LU, + [0x5c] = BDL + DU + LL, + [0x5d] = BDL + DL + DU, + [0x5e] = BDL + DR + LV, + [0x5f] = BDL + DV + LR, + [0x60] = BDL + DV + DR, + [0x61] = BDL + DL + LV, + [0x62] = BDL + DV + LL, + [0x63] = BDL + DV + DL, + [0x64] = BDL + DH + LD, + [0x65] = BDL + DD + LH, + [0x66] = BDL + DD + DH, + [0x67] = BDL + DH + LU, + [0x68] = BDL + DU + LH, + [0x69] = BDL + DH + DU, + [0x6a] = BDL + DH + LV, + [0x6b] = BDL + DV + LH, + [0x6c] = BDL + DH + DV, + + /* (light) arcs */ + [0x6d] = BDA + LD + LR, + [0x6e] = BDA + LD + LL, + [0x6f] = BDA + LU + LL, + [0x70] = BDA + LU + LR, + + /* Lower (Down) X/8 block (data is 8 - X) */ + [0x81] = BBD + 7, [0x82] = BBD + 6, [0x83] = BBD + 5, [0x84] = BBD + 4, + [0x85] = BBD + 3, [0x86] = BBD + 2, [0x87] = BBD + 1, [0x88] = BBD + 0, + + /* Left X/8 block (data is X) */ + [0x89] = BBL + 7, [0x8a] = BBL + 6, [0x8b] = BBL + 5, [0x8c] = BBL + 4, + [0x8d] = BBL + 3, [0x8e] = BBL + 2, [0x8f] = BBL + 1, + + /* upper 1/2 (4/8), 1/8 block (X), right 1/2, 1/8 block (8-X) */ + [0x80] = BBU + 4, [0x94] = BBU + 1, + [0x90] = BBR + 4, [0x95] = BBR + 7, + + /* Quadrants */ + [0x96] = BBQ + BL, + [0x97] = BBQ + BR, + [0x98] = BBQ + TL, + [0x99] = BBQ + TL + BL + BR, + [0x9a] = BBQ + TL + BR, + [0x9b] = BBQ + TL + TR + BL, + [0x9c] = BBQ + TL + TR + BR, + [0x9d] = BBQ + TR, + [0x9e] = BBQ + BL + TR, + [0x9f] = BBQ + BL + TR + BR, + + /* Shades, data is an alpha value in 25% units (1/4, 1/2, 3/4) */ + [0x91] = BBS + 1, [0x92] = BBS + 2, [0x93] = BBS + 3, + + /* U+2504 - U+250B, U+254C - U+254F: unsupported (dashes) */ + /* U+2571 - U+2573: unsupported (diagonals) */ +}; diff --git a/config.def.h b/config.def.h new file mode 100644 index 0000000..39f7037 --- /dev/null +++ b/config.def.h @@ -0,0 +1,578 @@ +/* See LICENSE file for copyright and license details. */ + +/* + * appearance + * + * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html + */ +static char *font = "JetBrainsMono Nerd Font :pixelsize=15:antialias=true:autohint=true"; +static char *font2[] = { "JetBrainsMono Nerd Font :pixelsize=15:antialias=true:autohint=true" }; +static int borderpx = 0; + +/* + * What program is execed by st depends of these precedence rules: + * 1: program passed with -e + * 2: utmp option + * 3: SHELL environment variable + * 4: value of shell in /etc/passwd + * 5: value of shell in config.h + */ +static char *shell = "/bin/sh"; +char *utmp = NULL; +char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400"; + +/* identification sequence returned in DA and DECID */ +char *vtiden = "\033[?6c"; + +/* Kerning / character bounding-box multipliers */ +static float cwscale = 1.0; +static float chscale = 1.0; + +/* + * word delimiter string + * + * More advanced example: L" `'\"()[]{}" + */ +wchar_t *worddelimiters = L" "; + +/* selection timeouts (in milliseconds) */ +static unsigned int doubleclicktimeout = 300; +static unsigned int tripleclicktimeout = 600; + +/* alt screens */ +int allowaltscreen = 1; + +/* + * draw latency range in ms - from new content/keypress/etc until drawing. + * within this range, st draws when content stops arriving (idle). mostly it's + * near minlatency, but it waits longer for slow updates to avoid partial draw. + * low minlatency will tear/flicker more, as it can "detect" idle too early. + */ +static double minlatency = 8; +static double maxlatency = 33; + +/* + * Synchronized-Update timeout in ms + * https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec + */ +static uint su_timeout = 200; + +/* + * blinking timeout (set to 0 to disable blinking) for the terminal blinking + * attribute. + */ +static unsigned int blinktimeout = 800; + +/* + * interval (in milliseconds) between each successive call to ximspot. This + * improves terminal performance while not reducing functionality to those + * whom need XIM support. + */ +int ximspot_update_interval = 1000; + +/* + * thickness of underline and bar cursors + */ +static unsigned int cursorthickness = 2; + +/* + * 1: render most of the lines/blocks characters without using the font for + * perfect alignment between cells (U2500 - U259F except dashes/diagonals). + * Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored. + * 0: disable (render all U25XX glyphs normally from the font). + */ +const int boxdraw = 1; +const int boxdraw_bold = 1; + +/* braille (U28XX): 1: render as adjacent "pixels", 0: use font */ +const int boxdraw_braille = 1; + +/* + * bell volume. It must be a value between -100 and 100. Use 0 for disabling + * it + */ +static int bellvolume = 0; + +/* default TERM value */ +char *termname = "st-256color"; + +/* + * spaces per tab + * + * When you are changing this value, don't forget to adapt the »it« value in + * the st.info and appropriately install the st.info in the environment where + * you use this st version. + * + * it#$tabspaces, + * + * Secondly make sure your kernel is not expanding tabs. When running `stty + * -a` »tab0« should appear. You can tell the terminal to not expand tabs by + * running following command: + * + * stty tabs + */ +unsigned int tabspaces = 8; + +/* bg opacity */ +float alpha = 1.0; + +/* Terminal colors (16 first used in escape sequence) */ +static const char *colorname[] = { + "#282828", /* hard contrast: #1d2021 / soft contrast: #32302f */ + "#cc241d", + "#98971a", + "#d79921", + "#458588", + "#b16286", + "#689d6a", + "#a89984", + "#928374", + "#fb4934", + "#b8bb26", + "#fabd2f", + "#83a598", + "#d3869b", + "#8ec07c", + "#ebdbb2", + [255] = 0, + /* more colors can be added after 255 to use with DefaultXX */ + "#add8e6", /* 256 -> cursor */ + "#555555", /* 257 -> rev cursor*/ + "#282828", /* 258 -> bg */ + "#ffffff", /* 259 -> fg */ +}; + + +/* + * Default colors (colorname index) + * foreground, background, cursor, reverse cursor + */ +unsigned int defaultfg = 259; +unsigned int defaultbg = 258; +unsigned int defaultcs = 256; +unsigned int defaultrcs = 257; + +/* + * https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h4-Functions-using-CSI-_-ordered-by-the-final-character-lparen-s-rparen:CSI-Ps-SP-q.1D81 + * Default style of cursor + * 0: Blinking block + * 1: Blinking block (default) + * 2: Steady block ("█") + * 3: Blinking underline + * 4: Steady underline ("_") + * 5: Blinking bar + * 6: Steady bar ("|") + * 7: Blinking st cursor + * 8: Steady st cursor + */ +static unsigned int cursorshape = 1; + +/* + * Default columns and rows numbers + */ + +static unsigned int cols = 80; +static unsigned int rows = 24; + +/* + * Default colour and shape of the mouse cursor + */ +static unsigned int mouseshape = XC_xterm; +static unsigned int mousefg = 7; +static unsigned int mousebg = 0; + +/* + * Color used to display font attributes when fontconfig selected a font which + * doesn't match the ones requested. + */ +static unsigned int defaultattr = 11; + +/* + * Xresources preferences to load at startup + */ +ResourcePref resources[] = { + { "font", STRING, &font }, + { "fontalt0", STRING, &font2[0] }, + { "color0", STRING, &colorname[0] }, + { "color1", STRING, &colorname[1] }, + { "color2", STRING, &colorname[2] }, + { "color3", STRING, &colorname[3] }, + { "color4", STRING, &colorname[4] }, + { "color5", STRING, &colorname[5] }, + { "color6", STRING, &colorname[6] }, + { "color7", STRING, &colorname[7] }, + { "color8", STRING, &colorname[8] }, + { "color9", STRING, &colorname[9] }, + { "color10", STRING, &colorname[10] }, + { "color11", STRING, &colorname[11] }, + { "color12", STRING, &colorname[12] }, + { "color13", STRING, &colorname[13] }, + { "color14", STRING, &colorname[14] }, + { "color15", STRING, &colorname[15] }, + { "background", STRING, &colorname[258] }, + { "foreground", STRING, &colorname[259] }, + { "cursorColor", STRING, &colorname[256] }, + { "termname", STRING, &termname }, + { "shell", STRING, &shell }, + { "blinktimeout", INTEGER, &blinktimeout }, + { "bellvolume", INTEGER, &bellvolume }, + { "tabspaces", INTEGER, &tabspaces }, + { "borderpx", INTEGER, &borderpx }, + { "cwscale", FLOAT, &cwscale }, + { "chscale", FLOAT, &chscale }, + { "alpha", FLOAT, &alpha }, + { "ximspot_update_interval", INTEGER, &ximspot_update_interval }, +}; + +/* + * Internal mouse shortcuts. + * Beware that overloading Button1 will disable the selection. + */ +const unsigned int mousescrollincrement = 3; +static MouseShortcut mshortcuts[] = { + /* button mask string */ + { Button4, XK_NO_MOD, "\031" }, + { Button5, XK_NO_MOD, "\005" }, +}; + +/* Internal keyboard shortcuts. */ +#define MODKEY Mod1Mask +#define TERMMOD (Mod4Mask|ShiftMask) + +MouseKey mkeys[] = { + /* button mask function argument */ + { Button4, XK_NO_MOD, kscrollup, {.i = mousescrollincrement} }, + { Button5, XK_NO_MOD, kscrolldown, {.i = mousescrollincrement} }, + { Button4, Mod4Mask, zoom, {.f = +1} }, + { Button5, Mod4Mask, zoom, {.f = -1} }, +}; + +static char *openurlcmd[] = { "/bin/sh", "-c", "st-urlhandler", "externalpipe", NULL }; + +static char *copyurlcmd[] = { "/bin/sh", "-c", + "tmp=$(sed 's/.*│//g' | tr -d '\n' | grep -aEo '(((http|https|gopher|gemini|ftp|ftps|git)://|www\\.)[a-zA-Z0-9.]*[:]?[a-zA-Z0-9./@$&%?$#=_-~]*)|((magnet:\\?xt=urn:btih:)[a-zA-Z0-9]*)' | uniq | sed 's/^www./http:\\/\\/www\\./g' ); IFS=; [ ! -z $tmp ] && echo $tmp | dmenu -i -p 'Copy which url?' -l 10 | tr -d '\n' | xclip -selection clipboard", + "externalpipe", NULL }; + +static char *copyoutput[] = { "/bin/sh", "-c", "st-copyout", "externalpipe", NULL }; + +static Shortcut shortcuts[] = { + /* mask keysym function argument */ + { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} }, + { ControlMask, XK_Print, toggleprinter, {.i = 0} }, + { ShiftMask, XK_Print, printscreen, {.i = 0} }, + { XK_ANY_MOD, XK_Print, printsel, {.i = 0} }, + { MODKEY, XK_comma, zoom, {.f = +1} }, + { MODKEY, XK_period, zoom, {.f = -1} }, + { MODKEY, XK_g, zoomreset, {.f = 0} }, + { ControlMask | ShiftMask, XK_C, clipcopy, {.i = 0} }, + { ShiftMask, XK_Insert, clippaste, {.i = 0} }, + { ControlMask | ShiftMask, XK_V, clippaste, {.i = 0} }, + { XK_ANY_MOD, Button2, selpaste, {.i = 0} }, + { MODKEY, XK_Num_Lock, numlock, {.i = 0} }, + { ControlMask | ShiftMask, XK_U, iso14755, {.i = 0} }, + { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, + { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, + { MODKEY, XK_Page_Up, kscrollup, {.i = -1} }, + { MODKEY, XK_Page_Down, kscrolldown, {.i = -1} }, + { MODKEY, XK_k, kscrollup, {.i = 1} }, + { MODKEY, XK_j, kscrolldown, {.i = 1} }, + { MODKEY, XK_Up, kscrollup, {.i = 1} }, + { MODKEY, XK_Down, kscrolldown, {.i = 1} }, + { MODKEY, XK_u, kscrollup, {.i = -1} }, + { MODKEY, XK_d, kscrolldown, {.i = -1} }, + { MODKEY, XK_s, changealpha, {.f = -0.05} }, + { MODKEY, XK_a, changealpha, {.f = +0.05} }, + { MODKEY, XK_m, changealpha, {.f = +2.00} }, + { TERMMOD, XK_Up, zoom, {.f = +1} }, + { TERMMOD, XK_Down, zoom, {.f = -1} }, + { TERMMOD, XK_K, zoom, {.f = +1} }, + { TERMMOD, XK_J, zoom, {.f = -1} }, + { TERMMOD, XK_U, zoom, {.f = +2} }, + { TERMMOD, XK_D, zoom, {.f = -2} }, + { MODKEY, XK_l, externalpipe, {.v = openurlcmd } }, + { MODKEY, XK_y, externalpipe, {.v = copyurlcmd } }, + { MODKEY, XK_o, externalpipe, {.v = copyoutput } }, + { TERMMOD, XK_Return, newterm, {.i = 0} }, + +}; + +/* + * Special keys (change & recompile st.info accordingly) + * + * Mask value: + * * Use XK_ANY_MOD to match the key no matter modifiers state + * * Use XK_NO_MOD to match the key alone (no modifiers) + * appkey value: + * * 0: no value + * * > 0: keypad application mode enabled + * * = 2: term.numlock = 1 + * * < 0: keypad application mode disabled + * appcursor value: + * * 0: no value + * * > 0: cursor application mode enabled + * * < 0: cursor application mode disabled + * crlf value + * * 0: no value + * * > 0: crlf mode is enabled + * * < 0: crlf mode is disabled + * + * Be careful with the order of the definitions because st searches in + * this table sequentially, so any XK_ANY_MOD must be in the last + * position for a key. + */ + +/* + * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF) + * to be mapped below, add them to this array. + */ +static KeySym mappedkeys[] = { -1 }; + +/* + * State bits to ignore when matching key or button events. By default, + * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored. + */ +static uint ignoremod = Mod2Mask|XK_SWITCH_MOD; + +/* + * Override mouse-select while mask is active (when MODE_MOUSE is set). + * Note that if you want to use ShiftMask with selmasks, set this to an other + * modifier, set to 0 to not use it. + */ +static uint forceselmod = ShiftMask; + +/* + * This is the huge key array which defines all compatibility to the Linux + * world. Please decide about changes wisely. + */ +static Key key[] = { + /* keysym mask string appkey appcursor */ + { XK_KP_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0}, + { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0}, + { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0}, + { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0}, + { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0}, + { XK_KP_End, ControlMask, "\033[J", -1, 0}, + { XK_KP_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_KP_End, ShiftMask, "\033[K", -1, 0}, + { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[L", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_KP_Delete, ControlMask, "\033[M", -1, 0}, + { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0}, + { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0}, + { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0}, + { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0}, + { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0}, + { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0}, + { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0}, + { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0}, + { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0}, + { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0}, + { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0}, + { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0}, + { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0}, + { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0}, + { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0}, + { XK_Up, ShiftMask, "\033[1;2A", 0, 0}, + { XK_Up, Mod1Mask, "\033[1;3A", 0, 0}, + { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0}, + { XK_Up, ControlMask, "\033[1;5A", 0, 0}, + { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0}, + { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0}, + { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0}, + { XK_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_Down, ShiftMask, "\033[1;2B", 0, 0}, + { XK_Down, Mod1Mask, "\033[1;3B", 0, 0}, + { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0}, + { XK_Down, ControlMask, "\033[1;5B", 0, 0}, + { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0}, + { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0}, + { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0}, + { XK_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_Left, ShiftMask, "\033[1;2D", 0, 0}, + { XK_Left, Mod1Mask, "\033[1;3D", 0, 0}, + { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0}, + { XK_Left, ControlMask, "\033[1;5D", 0, 0}, + { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0}, + { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0}, + { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0}, + { XK_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_Right, ShiftMask, "\033[1;2C", 0, 0}, + { XK_Right, Mod1Mask, "\033[1;3C", 0, 0}, + { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0}, + { XK_Right, ControlMask, "\033[1;5C", 0, 0}, + { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0}, + { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0}, + { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0}, + { XK_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0}, + { XK_Return, Mod1Mask, "\033\r", 0, 0}, + { XK_Return, XK_ANY_MOD, "\r", 0, 0}, + { XK_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_Insert, ControlMask, "\033[L", -1, 0}, + { XK_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_Delete, ControlMask, "\033[M", -1, 0}, + { XK_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_BackSpace, XK_NO_MOD, "\177", 0, 0}, + { XK_BackSpace, Mod1Mask, "\033\177", 0, 0}, + { XK_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_End, ControlMask, "\033[J", -1, 0}, + { XK_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_End, ShiftMask, "\033[K", -1, 0}, + { XK_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_Prior, ControlMask, "\033[5;5~", 0, 0}, + { XK_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_Next, ControlMask, "\033[6;5~", 0, 0}, + { XK_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_F1, XK_NO_MOD, "\033OP" , 0, 0}, + { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0}, + { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0}, + { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0}, + { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0}, + { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0}, + { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0}, + { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0}, + { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0}, + { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0}, + { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0}, + { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0}, + { XK_F3, XK_NO_MOD, "\033OR" , 0, 0}, + { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0}, + { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0}, + { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0}, + { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0}, + { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0}, + { XK_F4, XK_NO_MOD, "\033OS" , 0, 0}, + { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0}, + { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0}, + { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0}, + { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0}, + { XK_F5, XK_NO_MOD, "\033[15~", 0, 0}, + { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0}, + { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0}, + { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0}, + { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0}, + { XK_F6, XK_NO_MOD, "\033[17~", 0, 0}, + { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0}, + { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0}, + { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0}, + { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0}, + { XK_F7, XK_NO_MOD, "\033[18~", 0, 0}, + { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0}, + { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0}, + { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0}, + { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0}, + { XK_F8, XK_NO_MOD, "\033[19~", 0, 0}, + { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0}, + { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0}, + { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0}, + { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0}, + { XK_F9, XK_NO_MOD, "\033[20~", 0, 0}, + { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0}, + { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0}, + { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0}, + { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0}, + { XK_F10, XK_NO_MOD, "\033[21~", 0, 0}, + { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0}, + { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0}, + { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0}, + { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0}, + { XK_F11, XK_NO_MOD, "\033[23~", 0, 0}, + { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0}, + { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0}, + { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0}, + { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0}, + { XK_F12, XK_NO_MOD, "\033[24~", 0, 0}, + { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0}, + { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0}, + { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0}, + { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0}, + { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0}, + { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0}, + { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0}, + { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0}, + { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0}, + { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0}, + { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0}, + { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0}, + { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0}, + { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0}, + { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0}, + { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0}, + { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0}, + { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0}, + { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0}, + { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0}, + { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0}, + { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0}, + { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0}, + { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0}, + { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0}, + { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0}, + { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0}, +}; + +/* + * Selection types' masks. + * Use the same masks as usual. + * Button1Mask is always unset, to make masks match between ButtonPress. + * ButtonRelease and MotionNotify. + * If no match is found, regular selection is used. + */ +static uint selmasks[] = { + [SEL_RECTANGULAR] = Mod1Mask, +}; + +/* + * Printable characters in ASCII, used to estimate the advance width + * of single wide characters. + */ +static char ascii_printable[] = +" !\"#$%&'()*+,-./0123456789:;<=>?" +"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_" +"`abcdefghijklmnopqrstuvwxyz{|}~"; diff --git a/config.h b/config.h new file mode 100644 index 0000000..39f7037 --- /dev/null +++ b/config.h @@ -0,0 +1,578 @@ +/* See LICENSE file for copyright and license details. */ + +/* + * appearance + * + * font: see http://freedesktop.org/software/fontconfig/fontconfig-user.html + */ +static char *font = "JetBrainsMono Nerd Font :pixelsize=15:antialias=true:autohint=true"; +static char *font2[] = { "JetBrainsMono Nerd Font :pixelsize=15:antialias=true:autohint=true" }; +static int borderpx = 0; + +/* + * What program is execed by st depends of these precedence rules: + * 1: program passed with -e + * 2: utmp option + * 3: SHELL environment variable + * 4: value of shell in /etc/passwd + * 5: value of shell in config.h + */ +static char *shell = "/bin/sh"; +char *utmp = NULL; +char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400"; + +/* identification sequence returned in DA and DECID */ +char *vtiden = "\033[?6c"; + +/* Kerning / character bounding-box multipliers */ +static float cwscale = 1.0; +static float chscale = 1.0; + +/* + * word delimiter string + * + * More advanced example: L" `'\"()[]{}" + */ +wchar_t *worddelimiters = L" "; + +/* selection timeouts (in milliseconds) */ +static unsigned int doubleclicktimeout = 300; +static unsigned int tripleclicktimeout = 600; + +/* alt screens */ +int allowaltscreen = 1; + +/* + * draw latency range in ms - from new content/keypress/etc until drawing. + * within this range, st draws when content stops arriving (idle). mostly it's + * near minlatency, but it waits longer for slow updates to avoid partial draw. + * low minlatency will tear/flicker more, as it can "detect" idle too early. + */ +static double minlatency = 8; +static double maxlatency = 33; + +/* + * Synchronized-Update timeout in ms + * https://gitlab.com/gnachman/iterm2/-/wikis/synchronized-updates-spec + */ +static uint su_timeout = 200; + +/* + * blinking timeout (set to 0 to disable blinking) for the terminal blinking + * attribute. + */ +static unsigned int blinktimeout = 800; + +/* + * interval (in milliseconds) between each successive call to ximspot. This + * improves terminal performance while not reducing functionality to those + * whom need XIM support. + */ +int ximspot_update_interval = 1000; + +/* + * thickness of underline and bar cursors + */ +static unsigned int cursorthickness = 2; + +/* + * 1: render most of the lines/blocks characters without using the font for + * perfect alignment between cells (U2500 - U259F except dashes/diagonals). + * Bold affects lines thickness if boxdraw_bold is not 0. Italic is ignored. + * 0: disable (render all U25XX glyphs normally from the font). + */ +const int boxdraw = 1; +const int boxdraw_bold = 1; + +/* braille (U28XX): 1: render as adjacent "pixels", 0: use font */ +const int boxdraw_braille = 1; + +/* + * bell volume. It must be a value between -100 and 100. Use 0 for disabling + * it + */ +static int bellvolume = 0; + +/* default TERM value */ +char *termname = "st-256color"; + +/* + * spaces per tab + * + * When you are changing this value, don't forget to adapt the »it« value in + * the st.info and appropriately install the st.info in the environment where + * you use this st version. + * + * it#$tabspaces, + * + * Secondly make sure your kernel is not expanding tabs. When running `stty + * -a` »tab0« should appear. You can tell the terminal to not expand tabs by + * running following command: + * + * stty tabs + */ +unsigned int tabspaces = 8; + +/* bg opacity */ +float alpha = 1.0; + +/* Terminal colors (16 first used in escape sequence) */ +static const char *colorname[] = { + "#282828", /* hard contrast: #1d2021 / soft contrast: #32302f */ + "#cc241d", + "#98971a", + "#d79921", + "#458588", + "#b16286", + "#689d6a", + "#a89984", + "#928374", + "#fb4934", + "#b8bb26", + "#fabd2f", + "#83a598", + "#d3869b", + "#8ec07c", + "#ebdbb2", + [255] = 0, + /* more colors can be added after 255 to use with DefaultXX */ + "#add8e6", /* 256 -> cursor */ + "#555555", /* 257 -> rev cursor*/ + "#282828", /* 258 -> bg */ + "#ffffff", /* 259 -> fg */ +}; + + +/* + * Default colors (colorname index) + * foreground, background, cursor, reverse cursor + */ +unsigned int defaultfg = 259; +unsigned int defaultbg = 258; +unsigned int defaultcs = 256; +unsigned int defaultrcs = 257; + +/* + * https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h4-Functions-using-CSI-_-ordered-by-the-final-character-lparen-s-rparen:CSI-Ps-SP-q.1D81 + * Default style of cursor + * 0: Blinking block + * 1: Blinking block (default) + * 2: Steady block ("█") + * 3: Blinking underline + * 4: Steady underline ("_") + * 5: Blinking bar + * 6: Steady bar ("|") + * 7: Blinking st cursor + * 8: Steady st cursor + */ +static unsigned int cursorshape = 1; + +/* + * Default columns and rows numbers + */ + +static unsigned int cols = 80; +static unsigned int rows = 24; + +/* + * Default colour and shape of the mouse cursor + */ +static unsigned int mouseshape = XC_xterm; +static unsigned int mousefg = 7; +static unsigned int mousebg = 0; + +/* + * Color used to display font attributes when fontconfig selected a font which + * doesn't match the ones requested. + */ +static unsigned int defaultattr = 11; + +/* + * Xresources preferences to load at startup + */ +ResourcePref resources[] = { + { "font", STRING, &font }, + { "fontalt0", STRING, &font2[0] }, + { "color0", STRING, &colorname[0] }, + { "color1", STRING, &colorname[1] }, + { "color2", STRING, &colorname[2] }, + { "color3", STRING, &colorname[3] }, + { "color4", STRING, &colorname[4] }, + { "color5", STRING, &colorname[5] }, + { "color6", STRING, &colorname[6] }, + { "color7", STRING, &colorname[7] }, + { "color8", STRING, &colorname[8] }, + { "color9", STRING, &colorname[9] }, + { "color10", STRING, &colorname[10] }, + { "color11", STRING, &colorname[11] }, + { "color12", STRING, &colorname[12] }, + { "color13", STRING, &colorname[13] }, + { "color14", STRING, &colorname[14] }, + { "color15", STRING, &colorname[15] }, + { "background", STRING, &colorname[258] }, + { "foreground", STRING, &colorname[259] }, + { "cursorColor", STRING, &colorname[256] }, + { "termname", STRING, &termname }, + { "shell", STRING, &shell }, + { "blinktimeout", INTEGER, &blinktimeout }, + { "bellvolume", INTEGER, &bellvolume }, + { "tabspaces", INTEGER, &tabspaces }, + { "borderpx", INTEGER, &borderpx }, + { "cwscale", FLOAT, &cwscale }, + { "chscale", FLOAT, &chscale }, + { "alpha", FLOAT, &alpha }, + { "ximspot_update_interval", INTEGER, &ximspot_update_interval }, +}; + +/* + * Internal mouse shortcuts. + * Beware that overloading Button1 will disable the selection. + */ +const unsigned int mousescrollincrement = 3; +static MouseShortcut mshortcuts[] = { + /* button mask string */ + { Button4, XK_NO_MOD, "\031" }, + { Button5, XK_NO_MOD, "\005" }, +}; + +/* Internal keyboard shortcuts. */ +#define MODKEY Mod1Mask +#define TERMMOD (Mod4Mask|ShiftMask) + +MouseKey mkeys[] = { + /* button mask function argument */ + { Button4, XK_NO_MOD, kscrollup, {.i = mousescrollincrement} }, + { Button5, XK_NO_MOD, kscrolldown, {.i = mousescrollincrement} }, + { Button4, Mod4Mask, zoom, {.f = +1} }, + { Button5, Mod4Mask, zoom, {.f = -1} }, +}; + +static char *openurlcmd[] = { "/bin/sh", "-c", "st-urlhandler", "externalpipe", NULL }; + +static char *copyurlcmd[] = { "/bin/sh", "-c", + "tmp=$(sed 's/.*│//g' | tr -d '\n' | grep -aEo '(((http|https|gopher|gemini|ftp|ftps|git)://|www\\.)[a-zA-Z0-9.]*[:]?[a-zA-Z0-9./@$&%?$#=_-~]*)|((magnet:\\?xt=urn:btih:)[a-zA-Z0-9]*)' | uniq | sed 's/^www./http:\\/\\/www\\./g' ); IFS=; [ ! -z $tmp ] && echo $tmp | dmenu -i -p 'Copy which url?' -l 10 | tr -d '\n' | xclip -selection clipboard", + "externalpipe", NULL }; + +static char *copyoutput[] = { "/bin/sh", "-c", "st-copyout", "externalpipe", NULL }; + +static Shortcut shortcuts[] = { + /* mask keysym function argument */ + { XK_ANY_MOD, XK_Break, sendbreak, {.i = 0} }, + { ControlMask, XK_Print, toggleprinter, {.i = 0} }, + { ShiftMask, XK_Print, printscreen, {.i = 0} }, + { XK_ANY_MOD, XK_Print, printsel, {.i = 0} }, + { MODKEY, XK_comma, zoom, {.f = +1} }, + { MODKEY, XK_period, zoom, {.f = -1} }, + { MODKEY, XK_g, zoomreset, {.f = 0} }, + { ControlMask | ShiftMask, XK_C, clipcopy, {.i = 0} }, + { ShiftMask, XK_Insert, clippaste, {.i = 0} }, + { ControlMask | ShiftMask, XK_V, clippaste, {.i = 0} }, + { XK_ANY_MOD, Button2, selpaste, {.i = 0} }, + { MODKEY, XK_Num_Lock, numlock, {.i = 0} }, + { ControlMask | ShiftMask, XK_U, iso14755, {.i = 0} }, + { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, + { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, + { MODKEY, XK_Page_Up, kscrollup, {.i = -1} }, + { MODKEY, XK_Page_Down, kscrolldown, {.i = -1} }, + { MODKEY, XK_k, kscrollup, {.i = 1} }, + { MODKEY, XK_j, kscrolldown, {.i = 1} }, + { MODKEY, XK_Up, kscrollup, {.i = 1} }, + { MODKEY, XK_Down, kscrolldown, {.i = 1} }, + { MODKEY, XK_u, kscrollup, {.i = -1} }, + { MODKEY, XK_d, kscrolldown, {.i = -1} }, + { MODKEY, XK_s, changealpha, {.f = -0.05} }, + { MODKEY, XK_a, changealpha, {.f = +0.05} }, + { MODKEY, XK_m, changealpha, {.f = +2.00} }, + { TERMMOD, XK_Up, zoom, {.f = +1} }, + { TERMMOD, XK_Down, zoom, {.f = -1} }, + { TERMMOD, XK_K, zoom, {.f = +1} }, + { TERMMOD, XK_J, zoom, {.f = -1} }, + { TERMMOD, XK_U, zoom, {.f = +2} }, + { TERMMOD, XK_D, zoom, {.f = -2} }, + { MODKEY, XK_l, externalpipe, {.v = openurlcmd } }, + { MODKEY, XK_y, externalpipe, {.v = copyurlcmd } }, + { MODKEY, XK_o, externalpipe, {.v = copyoutput } }, + { TERMMOD, XK_Return, newterm, {.i = 0} }, + +}; + +/* + * Special keys (change & recompile st.info accordingly) + * + * Mask value: + * * Use XK_ANY_MOD to match the key no matter modifiers state + * * Use XK_NO_MOD to match the key alone (no modifiers) + * appkey value: + * * 0: no value + * * > 0: keypad application mode enabled + * * = 2: term.numlock = 1 + * * < 0: keypad application mode disabled + * appcursor value: + * * 0: no value + * * > 0: cursor application mode enabled + * * < 0: cursor application mode disabled + * crlf value + * * 0: no value + * * > 0: crlf mode is enabled + * * < 0: crlf mode is disabled + * + * Be careful with the order of the definitions because st searches in + * this table sequentially, so any XK_ANY_MOD must be in the last + * position for a key. + */ + +/* + * If you want keys other than the X11 function keys (0xFD00 - 0xFFFF) + * to be mapped below, add them to this array. + */ +static KeySym mappedkeys[] = { -1 }; + +/* + * State bits to ignore when matching key or button events. By default, + * numlock (Mod2Mask) and keyboard layout (XK_SWITCH_MOD) are ignored. + */ +static uint ignoremod = Mod2Mask|XK_SWITCH_MOD; + +/* + * Override mouse-select while mask is active (when MODE_MOUSE is set). + * Note that if you want to use ShiftMask with selmasks, set this to an other + * modifier, set to 0 to not use it. + */ +static uint forceselmod = ShiftMask; + +/* + * This is the huge key array which defines all compatibility to the Linux + * world. Please decide about changes wisely. + */ +static Key key[] = { + /* keysym mask string appkey appcursor */ + { XK_KP_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_KP_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_KP_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_KP_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_KP_Up, XK_ANY_MOD, "\033Ox", +1, 0}, + { XK_KP_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_KP_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_KP_Down, XK_ANY_MOD, "\033Or", +1, 0}, + { XK_KP_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_KP_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_KP_Left, XK_ANY_MOD, "\033Ot", +1, 0}, + { XK_KP_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_KP_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_KP_Right, XK_ANY_MOD, "\033Ov", +1, 0}, + { XK_KP_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_KP_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_KP_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_KP_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_KP_Begin, XK_ANY_MOD, "\033[E", 0, 0}, + { XK_KP_End, ControlMask, "\033[J", -1, 0}, + { XK_KP_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_KP_End, ShiftMask, "\033[K", -1, 0}, + { XK_KP_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_KP_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_KP_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_KP_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_KP_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_KP_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[L", -1, 0}, + { XK_KP_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_KP_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_KP_Delete, ControlMask, "\033[M", -1, 0}, + { XK_KP_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_KP_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_KP_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_KP_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_KP_Multiply, XK_ANY_MOD, "\033Oj", +2, 0}, + { XK_KP_Add, XK_ANY_MOD, "\033Ok", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\033OM", +2, 0}, + { XK_KP_Enter, XK_ANY_MOD, "\r", -1, 0}, + { XK_KP_Subtract, XK_ANY_MOD, "\033Om", +2, 0}, + { XK_KP_Decimal, XK_ANY_MOD, "\033On", +2, 0}, + { XK_KP_Divide, XK_ANY_MOD, "\033Oo", +2, 0}, + { XK_KP_0, XK_ANY_MOD, "\033Op", +2, 0}, + { XK_KP_1, XK_ANY_MOD, "\033Oq", +2, 0}, + { XK_KP_2, XK_ANY_MOD, "\033Or", +2, 0}, + { XK_KP_3, XK_ANY_MOD, "\033Os", +2, 0}, + { XK_KP_4, XK_ANY_MOD, "\033Ot", +2, 0}, + { XK_KP_5, XK_ANY_MOD, "\033Ou", +2, 0}, + { XK_KP_6, XK_ANY_MOD, "\033Ov", +2, 0}, + { XK_KP_7, XK_ANY_MOD, "\033Ow", +2, 0}, + { XK_KP_8, XK_ANY_MOD, "\033Ox", +2, 0}, + { XK_KP_9, XK_ANY_MOD, "\033Oy", +2, 0}, + { XK_Up, ShiftMask, "\033[1;2A", 0, 0}, + { XK_Up, Mod1Mask, "\033[1;3A", 0, 0}, + { XK_Up, ShiftMask|Mod1Mask,"\033[1;4A", 0, 0}, + { XK_Up, ControlMask, "\033[1;5A", 0, 0}, + { XK_Up, ShiftMask|ControlMask,"\033[1;6A", 0, 0}, + { XK_Up, ControlMask|Mod1Mask,"\033[1;7A", 0, 0}, + { XK_Up,ShiftMask|ControlMask|Mod1Mask,"\033[1;8A", 0, 0}, + { XK_Up, XK_ANY_MOD, "\033[A", 0, -1}, + { XK_Up, XK_ANY_MOD, "\033OA", 0, +1}, + { XK_Down, ShiftMask, "\033[1;2B", 0, 0}, + { XK_Down, Mod1Mask, "\033[1;3B", 0, 0}, + { XK_Down, ShiftMask|Mod1Mask,"\033[1;4B", 0, 0}, + { XK_Down, ControlMask, "\033[1;5B", 0, 0}, + { XK_Down, ShiftMask|ControlMask,"\033[1;6B", 0, 0}, + { XK_Down, ControlMask|Mod1Mask,"\033[1;7B", 0, 0}, + { XK_Down,ShiftMask|ControlMask|Mod1Mask,"\033[1;8B",0, 0}, + { XK_Down, XK_ANY_MOD, "\033[B", 0, -1}, + { XK_Down, XK_ANY_MOD, "\033OB", 0, +1}, + { XK_Left, ShiftMask, "\033[1;2D", 0, 0}, + { XK_Left, Mod1Mask, "\033[1;3D", 0, 0}, + { XK_Left, ShiftMask|Mod1Mask,"\033[1;4D", 0, 0}, + { XK_Left, ControlMask, "\033[1;5D", 0, 0}, + { XK_Left, ShiftMask|ControlMask,"\033[1;6D", 0, 0}, + { XK_Left, ControlMask|Mod1Mask,"\033[1;7D", 0, 0}, + { XK_Left,ShiftMask|ControlMask|Mod1Mask,"\033[1;8D",0, 0}, + { XK_Left, XK_ANY_MOD, "\033[D", 0, -1}, + { XK_Left, XK_ANY_MOD, "\033OD", 0, +1}, + { XK_Right, ShiftMask, "\033[1;2C", 0, 0}, + { XK_Right, Mod1Mask, "\033[1;3C", 0, 0}, + { XK_Right, ShiftMask|Mod1Mask,"\033[1;4C", 0, 0}, + { XK_Right, ControlMask, "\033[1;5C", 0, 0}, + { XK_Right, ShiftMask|ControlMask,"\033[1;6C", 0, 0}, + { XK_Right, ControlMask|Mod1Mask,"\033[1;7C", 0, 0}, + { XK_Right,ShiftMask|ControlMask|Mod1Mask,"\033[1;8C",0, 0}, + { XK_Right, XK_ANY_MOD, "\033[C", 0, -1}, + { XK_Right, XK_ANY_MOD, "\033OC", 0, +1}, + { XK_ISO_Left_Tab, ShiftMask, "\033[Z", 0, 0}, + { XK_Return, Mod1Mask, "\033\r", 0, 0}, + { XK_Return, XK_ANY_MOD, "\r", 0, 0}, + { XK_Insert, ShiftMask, "\033[4l", -1, 0}, + { XK_Insert, ShiftMask, "\033[2;2~", +1, 0}, + { XK_Insert, ControlMask, "\033[L", -1, 0}, + { XK_Insert, ControlMask, "\033[2;5~", +1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[4h", -1, 0}, + { XK_Insert, XK_ANY_MOD, "\033[2~", +1, 0}, + { XK_Delete, ControlMask, "\033[M", -1, 0}, + { XK_Delete, ControlMask, "\033[3;5~", +1, 0}, + { XK_Delete, ShiftMask, "\033[2K", -1, 0}, + { XK_Delete, ShiftMask, "\033[3;2~", +1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[P", -1, 0}, + { XK_Delete, XK_ANY_MOD, "\033[3~", +1, 0}, + { XK_BackSpace, XK_NO_MOD, "\177", 0, 0}, + { XK_BackSpace, Mod1Mask, "\033\177", 0, 0}, + { XK_Home, ShiftMask, "\033[2J", 0, -1}, + { XK_Home, ShiftMask, "\033[1;2H", 0, +1}, + { XK_Home, XK_ANY_MOD, "\033[H", 0, -1}, + { XK_Home, XK_ANY_MOD, "\033[1~", 0, +1}, + { XK_End, ControlMask, "\033[J", -1, 0}, + { XK_End, ControlMask, "\033[1;5F", +1, 0}, + { XK_End, ShiftMask, "\033[K", -1, 0}, + { XK_End, ShiftMask, "\033[1;2F", +1, 0}, + { XK_End, XK_ANY_MOD, "\033[4~", 0, 0}, + { XK_Prior, ControlMask, "\033[5;5~", 0, 0}, + { XK_Prior, ShiftMask, "\033[5;2~", 0, 0}, + { XK_Prior, XK_ANY_MOD, "\033[5~", 0, 0}, + { XK_Next, ControlMask, "\033[6;5~", 0, 0}, + { XK_Next, ShiftMask, "\033[6;2~", 0, 0}, + { XK_Next, XK_ANY_MOD, "\033[6~", 0, 0}, + { XK_F1, XK_NO_MOD, "\033OP" , 0, 0}, + { XK_F1, /* F13 */ ShiftMask, "\033[1;2P", 0, 0}, + { XK_F1, /* F25 */ ControlMask, "\033[1;5P", 0, 0}, + { XK_F1, /* F37 */ Mod4Mask, "\033[1;6P", 0, 0}, + { XK_F1, /* F49 */ Mod1Mask, "\033[1;3P", 0, 0}, + { XK_F1, /* F61 */ Mod3Mask, "\033[1;4P", 0, 0}, + { XK_F2, XK_NO_MOD, "\033OQ" , 0, 0}, + { XK_F2, /* F14 */ ShiftMask, "\033[1;2Q", 0, 0}, + { XK_F2, /* F26 */ ControlMask, "\033[1;5Q", 0, 0}, + { XK_F2, /* F38 */ Mod4Mask, "\033[1;6Q", 0, 0}, + { XK_F2, /* F50 */ Mod1Mask, "\033[1;3Q", 0, 0}, + { XK_F2, /* F62 */ Mod3Mask, "\033[1;4Q", 0, 0}, + { XK_F3, XK_NO_MOD, "\033OR" , 0, 0}, + { XK_F3, /* F15 */ ShiftMask, "\033[1;2R", 0, 0}, + { XK_F3, /* F27 */ ControlMask, "\033[1;5R", 0, 0}, + { XK_F3, /* F39 */ Mod4Mask, "\033[1;6R", 0, 0}, + { XK_F3, /* F51 */ Mod1Mask, "\033[1;3R", 0, 0}, + { XK_F3, /* F63 */ Mod3Mask, "\033[1;4R", 0, 0}, + { XK_F4, XK_NO_MOD, "\033OS" , 0, 0}, + { XK_F4, /* F16 */ ShiftMask, "\033[1;2S", 0, 0}, + { XK_F4, /* F28 */ ControlMask, "\033[1;5S", 0, 0}, + { XK_F4, /* F40 */ Mod4Mask, "\033[1;6S", 0, 0}, + { XK_F4, /* F52 */ Mod1Mask, "\033[1;3S", 0, 0}, + { XK_F5, XK_NO_MOD, "\033[15~", 0, 0}, + { XK_F5, /* F17 */ ShiftMask, "\033[15;2~", 0, 0}, + { XK_F5, /* F29 */ ControlMask, "\033[15;5~", 0, 0}, + { XK_F5, /* F41 */ Mod4Mask, "\033[15;6~", 0, 0}, + { XK_F5, /* F53 */ Mod1Mask, "\033[15;3~", 0, 0}, + { XK_F6, XK_NO_MOD, "\033[17~", 0, 0}, + { XK_F6, /* F18 */ ShiftMask, "\033[17;2~", 0, 0}, + { XK_F6, /* F30 */ ControlMask, "\033[17;5~", 0, 0}, + { XK_F6, /* F42 */ Mod4Mask, "\033[17;6~", 0, 0}, + { XK_F6, /* F54 */ Mod1Mask, "\033[17;3~", 0, 0}, + { XK_F7, XK_NO_MOD, "\033[18~", 0, 0}, + { XK_F7, /* F19 */ ShiftMask, "\033[18;2~", 0, 0}, + { XK_F7, /* F31 */ ControlMask, "\033[18;5~", 0, 0}, + { XK_F7, /* F43 */ Mod4Mask, "\033[18;6~", 0, 0}, + { XK_F7, /* F55 */ Mod1Mask, "\033[18;3~", 0, 0}, + { XK_F8, XK_NO_MOD, "\033[19~", 0, 0}, + { XK_F8, /* F20 */ ShiftMask, "\033[19;2~", 0, 0}, + { XK_F8, /* F32 */ ControlMask, "\033[19;5~", 0, 0}, + { XK_F8, /* F44 */ Mod4Mask, "\033[19;6~", 0, 0}, + { XK_F8, /* F56 */ Mod1Mask, "\033[19;3~", 0, 0}, + { XK_F9, XK_NO_MOD, "\033[20~", 0, 0}, + { XK_F9, /* F21 */ ShiftMask, "\033[20;2~", 0, 0}, + { XK_F9, /* F33 */ ControlMask, "\033[20;5~", 0, 0}, + { XK_F9, /* F45 */ Mod4Mask, "\033[20;6~", 0, 0}, + { XK_F9, /* F57 */ Mod1Mask, "\033[20;3~", 0, 0}, + { XK_F10, XK_NO_MOD, "\033[21~", 0, 0}, + { XK_F10, /* F22 */ ShiftMask, "\033[21;2~", 0, 0}, + { XK_F10, /* F34 */ ControlMask, "\033[21;5~", 0, 0}, + { XK_F10, /* F46 */ Mod4Mask, "\033[21;6~", 0, 0}, + { XK_F10, /* F58 */ Mod1Mask, "\033[21;3~", 0, 0}, + { XK_F11, XK_NO_MOD, "\033[23~", 0, 0}, + { XK_F11, /* F23 */ ShiftMask, "\033[23;2~", 0, 0}, + { XK_F11, /* F35 */ ControlMask, "\033[23;5~", 0, 0}, + { XK_F11, /* F47 */ Mod4Mask, "\033[23;6~", 0, 0}, + { XK_F11, /* F59 */ Mod1Mask, "\033[23;3~", 0, 0}, + { XK_F12, XK_NO_MOD, "\033[24~", 0, 0}, + { XK_F12, /* F24 */ ShiftMask, "\033[24;2~", 0, 0}, + { XK_F12, /* F36 */ ControlMask, "\033[24;5~", 0, 0}, + { XK_F12, /* F48 */ Mod4Mask, "\033[24;6~", 0, 0}, + { XK_F12, /* F60 */ Mod1Mask, "\033[24;3~", 0, 0}, + { XK_F13, XK_NO_MOD, "\033[1;2P", 0, 0}, + { XK_F14, XK_NO_MOD, "\033[1;2Q", 0, 0}, + { XK_F15, XK_NO_MOD, "\033[1;2R", 0, 0}, + { XK_F16, XK_NO_MOD, "\033[1;2S", 0, 0}, + { XK_F17, XK_NO_MOD, "\033[15;2~", 0, 0}, + { XK_F18, XK_NO_MOD, "\033[17;2~", 0, 0}, + { XK_F19, XK_NO_MOD, "\033[18;2~", 0, 0}, + { XK_F20, XK_NO_MOD, "\033[19;2~", 0, 0}, + { XK_F21, XK_NO_MOD, "\033[20;2~", 0, 0}, + { XK_F22, XK_NO_MOD, "\033[21;2~", 0, 0}, + { XK_F23, XK_NO_MOD, "\033[23;2~", 0, 0}, + { XK_F24, XK_NO_MOD, "\033[24;2~", 0, 0}, + { XK_F25, XK_NO_MOD, "\033[1;5P", 0, 0}, + { XK_F26, XK_NO_MOD, "\033[1;5Q", 0, 0}, + { XK_F27, XK_NO_MOD, "\033[1;5R", 0, 0}, + { XK_F28, XK_NO_MOD, "\033[1;5S", 0, 0}, + { XK_F29, XK_NO_MOD, "\033[15;5~", 0, 0}, + { XK_F30, XK_NO_MOD, "\033[17;5~", 0, 0}, + { XK_F31, XK_NO_MOD, "\033[18;5~", 0, 0}, + { XK_F32, XK_NO_MOD, "\033[19;5~", 0, 0}, + { XK_F33, XK_NO_MOD, "\033[20;5~", 0, 0}, + { XK_F34, XK_NO_MOD, "\033[21;5~", 0, 0}, + { XK_F35, XK_NO_MOD, "\033[23;5~", 0, 0}, +}; + +/* + * Selection types' masks. + * Use the same masks as usual. + * Button1Mask is always unset, to make masks match between ButtonPress. + * ButtonRelease and MotionNotify. + * If no match is found, regular selection is used. + */ +static uint selmasks[] = { + [SEL_RECTANGULAR] = Mod1Mask, +}; + +/* + * Printable characters in ASCII, used to estimate the advance width + * of single wide characters. + */ +static char ascii_printable[] = +" !\"#$%&'()*+,-./0123456789:;<=>?" +"@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_" +"`abcdefghijklmnopqrstuvwxyz{|}~"; diff --git a/config.mk b/config.mk new file mode 100644 index 0000000..37a798b --- /dev/null +++ b/config.mk @@ -0,0 +1,41 @@ +# st version +VERSION = 0.8.5 + +# Customize below to fit your system + +# paths +PREFIX = /usr/local +MANPREFIX = $(PREFIX)/share/man +ICONPREFIX = $(PREFIX)/share/pixmaps +ICONNAME = st.png + +X11INC = /usr/X11R6/include +X11LIB = /usr/X11R6/lib + +PKG_CONFIG = pkg-config + +# includes and libs +INCS = -I$(X11INC) \ + `$(PKG_CONFIG) --cflags glib-2.0` \ + `$(PKG_CONFIG) --cflags fontconfig` \ + `$(PKG_CONFIG) --cflags freetype2` \ + `$(PKG_CONFIG) --cflags harfbuzz` +LIBS = -L$(X11LIB) -lm -lrt -lX11 -lutil -lXft -lgd \ + `$(PKG_CONFIG) --libs glib-2.0` \ + `$(PKG_CONFIG) --libs fontconfig` \ + `$(PKG_CONFIG) --libs freetype2` \ + `$(PKG_CONFIG) --libs harfbuzz` + +# flags +STCPPFLAGS = -DVERSION=\"$(VERSION)\" -DICON=\"$(ICONPREFIX)/$(ICONNAME)\" -D_XOPEN_SOURCE=600 +STCFLAGS = $(INCS) $(STCPPFLAGS) $(CPPFLAGS) $(CFLAGS) +STLDFLAGS = $(LIBS) $(LDFLAGS) + +# OpenBSD: +#CPPFLAGS = -DVERSION=\"$(VERSION)\" -D_XOPEN_SOURCE=600 -D_BSD_SOURCE +#LIBS = -L$(X11LIB) -lm -lX11 -lutil -lXft \ +# `$(PKG_CONFIG) --libs fontconfig` \ +# `$(PKG_CONFIG) --libs freetype2` + +# compiler and linker +# CC = c99 diff --git a/default.nix b/default.nix new file mode 100644 index 0000000..b547d63 --- /dev/null +++ b/default.nix @@ -0,0 +1,42 @@ +{ lib, stdenv, fetchurl, pkg-config, fontconfig, freetype, libX11, libXft +, harfbuzz, gd, glib, ncurses, writeText, conf ? null, patches ? [ ] +, extraLibs ? [ ], nixosTests }: + +stdenv.mkDerivation rec { + pname = "st-snazzy"; + version = "0.8.5"; + + src = ./.; + inherit patches; + + configFile = + lib.optionalString (conf != null) (writeText "config.def.h" conf); + + postPatch = lib.optionalString (conf != null) "cp ${configFile} config.def.h" + + lib.optionalString stdenv.isDarwin '' + substituteInPlace config.mk --replace "-lrt" "" + ''; + + strictDeps = true; + + makeFlags = [ "PKG_CONFIG=${stdenv.cc.targetPrefix}pkg-config" ]; + + nativeBuildInputs = [ pkg-config ncurses fontconfig freetype ]; + buildInputs = [ libX11 libXft harfbuzz gd glib ] ++ extraLibs; + + preInstall = '' + export TERMINFO=$out/share/terminfo + ''; + + installFlags = [ "PREFIX=$(out)" ]; + + passthru.tests.test = nixosTests.terminal-emulators.st; + + meta = with lib; { + homepage = "https://github.com/siduck/st"; + description = "snazzy terminal (suckless + lightweight)"; + license = licenses.mit; + maintainers = with maintainers; [ sioodmy ]; + platforms = platforms.unix; + }; +} diff --git a/flake.lock b/flake.lock new file mode 100644 index 0000000..34bc900 --- /dev/null +++ b/flake.lock @@ -0,0 +1,43 @@ +{ + "nodes": { + "flake-utils": { + "locked": { + "lastModified": 1656928814, + "narHash": "sha256-RIFfgBuKz6Hp89yRr7+NR5tzIAbn52h8vT6vXkYjZoM=", + "owner": "numtide", + "repo": "flake-utils", + "rev": "7e2a3b3dfd9af950a856d66b0a7d01e3c18aa249", + "type": "github" + }, + "original": { + "owner": "numtide", + "repo": "flake-utils", + "type": "github" + } + }, + "nixpkgs": { + "locked": { + "lastModified": 1658161305, + "narHash": "sha256-X/nhnMCa1Wx4YapsspyAs6QYz6T/85FofrI6NpdPDHg=", + "owner": "nixos", + "repo": "nixpkgs", + "rev": "e4d49de45a3b5dbcb881656b4e3986e666141ea9", + "type": "github" + }, + "original": { + "owner": "nixos", + "ref": "nixos-unstable", + "repo": "nixpkgs", + "type": "github" + } + }, + "root": { + "inputs": { + "flake-utils": "flake-utils", + "nixpkgs": "nixpkgs" + } + } + }, + "root": "root", + "version": 7 +} diff --git a/flake.nix b/flake.nix new file mode 100644 index 0000000..2c7faf9 --- /dev/null +++ b/flake.nix @@ -0,0 +1,35 @@ +{ + description = "snazzy terminal (suckless + lightweight)"; + + inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable"; + inputs.flake-utils.url = "github:numtide/flake-utils"; + + outputs = { self, nixpkgs, flake-utils }: + flake-utils.lib.eachDefaultSystem (system: + let pkgs = nixpkgs.legacyPackages.${system}; + in rec { + packages = flake-utils.lib.flattenTree { + st-snazzy = pkgs.callPackage ./default.nix { }; + }; + defaultPackage = packages.st-snazzy; + apps.st-snazzy = flake-utils.lib.mkApp { + drv = packages.st-snazzy; + exePath = "/bin/st"; + }; + apps.default = apps.st-snazzy; + defaultApp = apps.st-snazzy; + devShell = pkgs.mkShell rec { + name = "st-snazzy"; + packages = with pkgs; [ + pkgconfig + xorg.libX11 + xorg.libXft + fontconfig + harfbuzz + gd + glib + ]; + }; + + }); +} diff --git a/hb.c b/hb.c new file mode 100644 index 0000000..467bcac --- /dev/null +++ b/hb.c @@ -0,0 +1,140 @@ +#include +#include +#include +#include +#include +#include + +#include "st.h" + +void hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length); +hb_font_t *hbfindfont(XftFont *match); + +typedef struct { + XftFont *match; + hb_font_t *font; +} HbFontMatch; + +static int hbfontslen = 0; +static HbFontMatch *hbfontcache = NULL; + +void +hbunloadfonts() +{ + for (int i = 0; i < hbfontslen; i++) { + hb_font_destroy(hbfontcache[i].font); + XftUnlockFace(hbfontcache[i].match); + } + + if (hbfontcache != NULL) { + free(hbfontcache); + hbfontcache = NULL; + } + hbfontslen = 0; +} + +hb_font_t * +hbfindfont(XftFont *match) +{ + for (int i = 0; i < hbfontslen; i++) { + if (hbfontcache[i].match == match) + return hbfontcache[i].font; + } + + /* Font not found in cache, caching it now. */ + hbfontcache = realloc(hbfontcache, sizeof(HbFontMatch) * (hbfontslen + 1)); + FT_Face face = XftLockFace(match); + hb_font_t *font = hb_ft_font_create(face, NULL); + if (font == NULL) + die("Failed to load Harfbuzz font."); + + hbfontcache[hbfontslen].match = match; + hbfontcache[hbfontslen].font = font; + hbfontslen += 1; + + return font; +} + +void +hbtransform(XftGlyphFontSpec *specs, const Glyph *glyphs, size_t len, int x, int y) +{ + int start = 0, length = 1, gstart = 0; + hb_codepoint_t *codepoints = calloc(len, sizeof(hb_codepoint_t)); + + for (int idx = 1, specidx = 1; idx < len; idx++) { + if (glyphs[idx].mode & ATTR_WDUMMY) { + length += 1; + continue; + } + + if (specs[specidx].font != specs[start].font || ATTRCMP(glyphs[gstart], glyphs[idx]) || selected(x + idx, y) != selected(x + gstart, y)) { + hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length); + + /* Reset the sequence. */ + length = 1; + start = specidx; + gstart = idx; + } else { + length += 1; + } + + specidx++; + } + + /* EOL. */ + hbtransformsegment(specs[start].font, glyphs, codepoints, gstart, length); + + /* Apply the transformation to glyph specs. */ + for (int i = 0, specidx = 0; i < len; i++) { + if (glyphs[i].mode & ATTR_WDUMMY) + continue; + if (glyphs[i].mode & ATTR_BOXDRAW) { + specidx++; + continue; + } + + if (codepoints[i] != specs[specidx].glyph) + ((Glyph *)glyphs)[i].mode |= ATTR_LIGA; + + specs[specidx++].glyph = codepoints[i]; + } + + free(codepoints); +} + +void +hbtransformsegment(XftFont *xfont, const Glyph *string, hb_codepoint_t *codepoints, int start, int length) +{ + hb_font_t *font = hbfindfont(xfont); + if (font == NULL) + return; + + Rune rune; + ushort mode = USHRT_MAX; + hb_buffer_t *buffer = hb_buffer_create(); + hb_buffer_set_direction(buffer, HB_DIRECTION_LTR); + + /* Fill buffer with codepoints. */ + for (int i = start; i < (start+length); i++) { + rune = string[i].u; + mode = string[i].mode; + if (mode & ATTR_WDUMMY) + rune = 0x0020; + hb_buffer_add_codepoints(buffer, &rune, 1, 0, 1); + } + + /* Shape the segment. */ + hb_shape(font, buffer, NULL, 0); + + /* Get new glyph info. */ + hb_glyph_info_t *info = hb_buffer_get_glyph_infos(buffer, NULL); + + /* Write new codepoints. */ + for (int i = 0; i < length; i++) { + hb_codepoint_t gid = info[i].codepoint; + codepoints[start+i] = gid; + } + + /* Cleanup. */ + hb_buffer_destroy(buffer); +} diff --git a/hb.h b/hb.h new file mode 100644 index 0000000..b3e02d0 --- /dev/null +++ b/hb.h @@ -0,0 +1,7 @@ +#include +#include +#include + +void hbunloadfonts(); +void hbtransform(XftGlyphFontSpec *, const Glyph *, size_t, int, int); + diff --git a/normalMode.c b/normalMode.c new file mode 100644 index 0000000..f0c7e30 --- /dev/null +++ b/normalMode.c @@ -0,0 +1,284 @@ +#include +#include + +#include "normalMode.h" +#include "utils.h" + +extern Glyph const styleSearch, style[]; +extern char const wDelS[], wDelL[], *nmKeys[]; +extern unsigned int bg[], fg, currentBg, highlightBg, highlightFg, amountNmKeys; + +typedef struct { int p[3]; } Pos; + +typedef enum {visual='v', visualLine='V', yank = 'y'} Op; +typedef enum {infix_none=0, infix_i='i', infix_a='a'} Infix; +typedef enum {fw='/', bw='?'} Search; +struct NormalModeState { + struct OperationState { Op op; Infix infix; } cmd; + struct MotionState { uint32_t c; int active; Pos searchPos; Search search; } m; +} defaultNormalMode, state; + +DynamicArray searchStr=UTF8_ARRAY, cCmd=UTF8_ARRAY, lCmd=UTF8_ARRAY; +Glyph styleCmd; +char posBuffer[10], braces[6][3] = { {"()"}, {"<>"}, {"{}"}, {"[]"}, {"\"\""}, {"''"}}; +int exited=1, overlay=1; +static inline Rune cChar() { return term.line[term.c.y][term.c.x].u; } +static inline int pos(int p, int h) {return IS_SET(MODE_ALTSCREEN)?p:rangeY(p+h*histOff-insertOff);} +static inline int contains(Rune l, char const * values, size_t const memSize) { + for (uint32_t i = 0; i < memSize; ++i) if (l == values[i]) return 1; + return 0; +} +static inline void decodeTo(char const *cs, size_t len, DynamicArray *arr) { + char *var = expand(arr); + if (!var) empty(arr); else utf8decode(cs, (Rune*)(var), len); +} +static inline void applyPos(Pos p) { + term.c.x = p.p[0], term.c.y = p.p[1]; + if (!IS_SET(MODE_ALTSCREEN) && histOp) term.line = &buf[histOff = p.p[2]]; +} +/// Find string in history buffer, and provide string-match-lookup for highlighting matches +static int highlighted(int x, int y) { + int const s=term.row*term.col, i=y*term.col+x, sz=size(&searchStr); + return sz && i0)==cChar())?wIdx+1:0; + if (wi && !wIdx) historyMove(-(int)(s*wi), 0, 0); + } + if (wIdx == strSz && wIdx) historyMove(-(int)(s*strSz), 0, 0); + else applyPos(p); + markSearchMatches(all); + return wIdx == strSz; +} +/// Execute series of normal-mode commands from char array / decoded from dynamic array +ExitState pressKeys(char const* s, size_t e) { + ExitState x=success; + for (size_t i=0; iu = *((Rune*)(st->content + (size(st)+x-xEnd)*st->elSize)); +} +/// Expand "infix" expression: for instance (w =>) l b | | v e | | y +static ExitState expandExpression(char l) { // ({ =>) l ? { \n | l | v / } \n | h | y + int a=state.cmd.infix==infix_a, yank=state.cmd.op=='y', lc=tolower(l), found=1; + state.cmd.infix = infix_none; + if(!yank && state.cmd.op!=visual && state.cmd.op!=visualLine) return failed; + char mot[11] = {'l', 0, 'b', 0, 0, 'v', 0, 'e', 0, 0, (char)(yank ? 'y' : 0)}; + if (lc == 'w') mot[2] = (char) ('b' - lc + l), mot[7] = (char) ((a ? 'w' : 'e') - lc + l), mot[9]=(char)(a?'h':0); + else { + mot[1]='?', mot[3]=mot[8]='\n', mot[6]='/', mot[4]=(char)(a?0:'l'), mot[9]=(char)(a?0:'h'); + for (int i=found=0; !found && i < 6; ++i) + if ((found=contains(l,braces[i],2))) mot[2]=braces[i][0], mot[7]=braces[i][1]; + } + if (!found) return failed; + assign(&lCmd, &cCmd); + empty(&cCmd); + state.cmd = defaultNormalMode.cmd; + return pressKeys(mot, 11); +} + +ExitState executeMotion(char const cs, KeySym const *const ks) { + state.m.c = state.m.c < 1u ? 1u : state.m.c; + if (ks && *ks == XK_d) historyMove(0, 0, term.row / 2); + else if (ks && *ks == XK_u) historyMove(0, 0, -term.row / 2); + else if (ks && *ks == XK_f) historyMove(0, 0, term.row-1+(term.c.y=0)); + else if (ks && *ks == XK_b) historyMove(0, 0, -(term.c.y=term.row-1)); + else if (ks && *ks == XK_h) overlay = !overlay; + else if (cs == 'K') historyMove(0, 0, -(int)state.m.c); + else if (cs == 'J') historyMove(0, 0, (int)state.m.c); + else if (cs == 'k') historyMove(0, -(int)state.m.c, 0); + else if (cs == 'j') historyMove(0, (int)state.m.c, 0); + else if (cs == 'h') historyMove(-(int)state.m.c, 0, 0); + else if (cs == 'l') historyMove( (int)state.m.c, 0, 0); + else if (cs == 'H') term.c.y = 0; + else if (cs == 'M') term.c.y = term.bot / 2; + else if (cs == 'L') term.c.y = term.bot; + else if (cs == 's' || cs == 'S') altToggle = cs == 's' ? !altToggle : 1; + else if (cs == 'G' || cs == 'g') { + if (cs == 'G') term.c = c[0] = c[IS_SET(MODE_ALTSCREEN)+1]; + if (!IS_SET(MODE_ALTSCREEN)) term.line = &buf[histOff=insertOff]; + } else if (cs == '0') term.c.x = 0; + else if (cs == '$') term.c.x = term.col-1; + else if (cs == 't') sel.type = sel.type==SEL_REGULAR ? SEL_RECTANGULAR : SEL_REGULAR; + else if (cs == 'n' || cs == 'N') { + int const d = ((cs=='N')!=(state.m.search==bw))?-1:1; + for (uint32_t i = state.m.c; i && findString(d, 0); --i); + } else if (contains(cs, "wWeEbB", 6)) { + int const low=cs<=90, off=tolower(cs)!='w', sgn=(tolower(cs)=='b')?-1:1; + size_t const l=strlen(wDelL), s=strlen(wDelS), maxIt=rows()*term.col; + for (int it=0, on=0; state.m.c > 0 && it < maxIt; ++it) { + // If an offset is to be performed in beginning or not in beginning, move in history. + if ((off || it) && historyMove(sgn, 0, 0)) break; + // Determine if the category of the current letter changed since last iteration. + int n = 1<<(contains(cChar(),wDelS,s) ?(2-low) :!contains(cChar(),wDelL,l)), + found = (on|=n)^n && ((off ?on^n :n)!=1); + // If a reverse offset is to be performed and this is the last letter: + if (found && off) historyMove(-sgn, 0, 0); + // Terminate iteration: reset #it and old n value #on and decrease operation count: + if (found) it=-1, on=0, --state.m.c; + } + } else return failed; + state.m.c = 0; + return state.cmd.op == yank ? exitMotion : success; +} + +ExitState kPressHist(char const *cs, size_t len, int ctrl, KeySym const *kSym) { + historyOpToggle(1, 1); + int const prevYOff=IS_SET(MODE_ALTSCREEN)?0:histOff, search=state.m.search&&state.m.active, + prevAltToggle=altToggle, prevOverlay=overlay; + int const noOp=!state.cmd.op&&!state.cmd.infix, num=len==1&&BETWEEN(cs[0],48,57), + esc=kSym&&*kSym==XK_Escape, ret=(kSym&&*kSym==XK_Return)||(len==1&&cs[0]=='\n'), + quantifier=num&&(cs[0]!='0'||state.m.c), ins=!search &&noOp &&len &&cs[0]=='i'; + exited = 0; + ExitState result = success; + if (esc || ret || ins) { result = exitMotion, len = 0; + } else if (kSym && *kSym == XK_BackSpace) { + if ((search || state.m.c) && size(&cCmd)) pop(&cCmd); + if (search) { + if (size(&searchStr)) pop(&searchStr); + else result = exitMotion; + if (!size(&searchStr)) tfulldirt(); + applyPos(state.m.searchPos); + findString(state.m.search==fw ? 1 : -1, 1); + } else if (state.m.c) state.m.c /= 10; + len = 0; + } else if (search) { + if (len >= 1) decodeTo(cs, len, &searchStr); + applyPos(state.m.searchPos); + findString(state.m.search==fw ? 1 : -1, 1); + } else if (len == 0) { result = failed; + } else if (quantifier) { state.m.c = min(SHRT_MAX, (int)state.m.c*10+cs[0]-48); + } else if (state.cmd.infix && state.cmd.op && (result = expandExpression(cs[0]), len=0)) { + } else if (cs[0] == 'd') { state = defaultNormalMode; result = exitMotion; state.m.active = 1; + } else if (cs[0] == '.') { + if (size(&cCmd)) assign(&lCmd, &cCmd); + empty(&cCmd); + executeCommand((uint32_t*) lCmd.content, size(&lCmd)); + empty(&cCmd); + len = 0; + } else if (cs[0] == 'r') { tfulldirt(); + } else if (cs[0] == 'c') { + empty(&lCmd); + empty(&cCmd); + empty(&searchStr); + tfulldirt(); + len = 0; + } else if (cs[0] == fw || cs[0] == bw) { + empty(&searchStr); + state.m.search = (Search) cs[0]; + state.m.searchPos = (Pos){.p={term.c.x, term.c.y, prevYOff}}; + state.m.active = 1; + } else if (cs[0]==infix_i || cs[0]==infix_a) { state.cmd.infix=(Infix) cs[0]; + } else if (cs[0] == 'y') { + if (state.cmd.op) { + result = (state.cmd.op == yank || state.cmd.op == visualLine) ? exitOp : exitMotion; + if (state.cmd.op == yank) selstart(0, term.c.y, 0); + } else selstart(term.c.x, term.c.y, 0); + state.cmd.op = yank; + } else if (cs[0] == visual || cs[0] == visualLine) { + if (state.cmd.op != (Op) cs[0]) { + state.cmd = defaultNormalMode.cmd; + state.cmd.op = (Op) cs[0]; + selstart(cs[0] == visualLine ?0 :term.c.x, term.c.y, 0); + } else result = exitOp; + } else if (!(result =executeMotion((char) (len?cs[0]:0), ctrl?kSym:NULL))) { + result=failed; + for (size_t i = 0; !ctrl && i < amountNmKeys; ++i) + if (cs[0]==nmKeys[i][0] && + failed!=(result=pressKeys(&nmKeys[i][1], strlen(nmKeys[i])-1))) goto end; + } // Operation/Motion finished if valid: update cmd string, extend selection, update search + if (result != failed) { + if (len == 1 && !ctrl) decodeTo(cs, len, &cCmd); + if ((state.cmd.op == visualLine) || ((state.cmd.op == yank) && (result == exitOp))) { + int const off = term.c.y + (IS_SET(MODE_ALTSCREEN) ? 0 : histOff) < sel.ob.y; //< Selection start below end. + sel.ob.x = off ? term.col - 1 : 0; + selextend(off ? 0 : term.col-1, term.c.y, sel.type, 0); + } else if (sel.oe.x != -1) { + selextend(term.c.x, term.c.y, sel.type, 0); + } + } // Set repaint for motion or status bar + if (!IS_SET(MODE_ALTSCREEN) && prevYOff != histOff) tfulldirt(); + // Terminate Motion / operation if thus indicated + if (result == exitMotion) { + if (!state.m.active) result = (exited=noOp) ? finish : exitOp; + state.m.active = (int) (state.m.c = 0u); + } + if (result == exitOp || result == finish) { + if (state.cmd.op == yank) { + xsetsel(getsel()); + xclipcopy(); + } + state = defaultNormalMode; + selclear(); + if (!esc) assign(&lCmd, &cCmd); + empty(&cCmd); + } // Update the content displayed in the history overlay + styleCmd = style[state.cmd.op==yank ? 1 : (state.cmd.op==visual ? 2 : + (state.cmd.op==visualLine ? 3 :0))]; + int const posLin = !IS_SET(MODE_ALTSCREEN) ? rangeY(insertOff-histOff):0, h=rows()-term.row; + if (!posLin || posLin==h || !h) strcpy(posBuffer, posLin ? " [BOT] " : " [TOP] "); + else sprintf(posBuffer, " % 3d%c ", min(100, max(0, (int)(.5 + posLin * 100. / h))),'%'); + if ((overlay || overlay!=prevOverlay) && term.col>9 && term.row>4) { + if (!term.dirty[term.row-1]) xdrawline(term.line[term.row-1], term.col*2/3, term.row-1, term.col-1); + if (!term.dirty[term.row-2]) xdrawline(term.line[term.row-2], term.col*2/3, term.row-2, term.col-1); + } + if (result==finish) altToggle = 0; + if (altToggle != prevAltToggle) tswapscreen(); +end: + historyOpToggle(-1, 1); + return result; +} + +void historyOverlay(int x, int y, Glyph* g) { + if (!histMode) return; + TCursor const *cHist = histOp ? &term.c : &c[0]; + if(overlay && term.col > 9 && term.row > 4 && (x > (2*term.col/3)) && (y >= (term.row-2))) { + *g = (y == term.row - 2) ? styleSearch : styleCmd; + if (y == term.row-2) getChar(&searchStr, g, term.row-2, term.col-2, term.col/3, x); + else if (x > term.col - 7) g->u = (Rune)(posBuffer[x - term.col + 7]); + else getChar(size(&cCmd) ?&cCmd :&lCmd, g, term.row-1, term.col-7, term.col/3-6, x); + } else if (highlighted(x, y)) g->bg = highlightBg, g->fg = highlightFg; + else if ((x==cHist->x) ^ (y==cHist->y)) g->bg = currentBg; + else if (x==cHist->x) g->mode^=ATTR_REVERSE; +} +void historyPreDraw() { + static Pos op = {.p={0, 0, 0}}; + historyOpToggle(1, 0); + // Draw the cursor cross if changed + if (term.c.y >= term.row || op.p[1] >= term.row) tfulldirt(); + else if (exited || (op.p[1] != term.c.y)) term.dirty[term.c.y] = term.dirty[op.p[1]] = 1; + for (int i=0; (exited || term.c.x != op.p[0]) && i{xX}][{+-}{+-}]. See +.BR XParseGeometry (3) +for further details. +.TP +.B \-i +will fixate the position given with the -g option. +.TP +.BI \-n " name" +defines the window instance name (default $TERM). +.TP +.BI \-o " iofile" +writes all the I/O to +.I iofile. +This feature is useful when recording st sessions. A value of "-" means +standard output. +.TP +.BI \-T " title" +defines the window title (default 'st'). +.TP +.BI \-t " title" +defines the window title (default 'st'). +.TP +.BI \-w " windowid" +embeds st within the window identified by +.I windowid +.TP +.BI \-l " line" +use a tty +.I line +instead of a pseudo terminal. +.I line +should be a (pseudo-)serial device (e.g. /dev/ttyS0 on Linux for serial port +0). +When this flag is given +remaining arguments are used as flags for +.BR stty(1). +By default st initializes the serial line to 8 bits, no parity, 1 stop bit +and a 38400 baud rate. The speed is set by appending it as last argument +(e.g. 'st -l /dev/ttyS0 115200'). Arguments before the last one are +.BR stty(1) +flags. If you want to set odd parity on 115200 baud use for example 'st -l +/dev/ttyS0 parenb parodd 115200'. Set the number of bits by using for +example 'st -l /dev/ttyS0 cs7 115200'. See +.BR stty(1) +for more arguments and cases. +.TP +.B \-v +prints version information to stderr, then exits. +.TP +.BI \-e " command " [ " arguments " "... ]" +st executes +.I command +instead of the shell. If this is used it +.B must be the last option +on the command line, as in xterm / rxvt. +This option is only intended for compatibility, +and all the remaining arguments are used as a command +even without it. +.SH SHORTCUTS +.TP +.B Alt-j/k or Alt-Up/Down or Alt-Mouse Wheel +Scroll up/down one line at a time. +.TP +.B Alt-u/d or Alt-Page Up/Page Down +Scroll up/down one screen at a time. +.TP +.B Alt-Shift-k/j or Alt-Shift-Page Up/Page Down or Alt-Shift-Mouse Wheel +Increase or decrease font size. +.TP +.B Alt-Home +Reset to default font size. +.TP +.B Shift-Insert or Alt-v +Paste from clipboard. +.TP +.B Alt-c +Copy to clipboard. +.TP +.B Alt-p +Paste/input primary selection. +.TP +.B Alt-l +Show dmenu menu of all URLs on screen and choose one to open. +.TP +.B Alt-y +Show dmenu menu of all URLs on screen and choose one to copy. +.TP +.B Alt-o +Show dmenu menu of all recently run commands and copy the output of the chosen command to the clipboard. +.I xclip +required. +.TP +.B Alt-a/s +Increase or decrease opacity/alpha value (make window more or less transparent). +.TP +.B Break +Send a break in the serial line. +Break key is obtained in PC keyboards +pressing at the same time control and pause. +.TP +.B Ctrl-Print Screen +Toggle if st should print to the +.I iofile. +.TP +.B Shift-Print Screen +Print the full screen to the +.I iofile. +.TP +.B Print Screen +Print the selection to the +.I iofile. +.TP +.B Alt-Ctrl +Launch dmenu to enter a unicode codepoint and send the corresponding glyph +to st. +.SH CUSTOMIZATION +.B st +can be customized by creating a custom config.h and (re)compiling the source +code. This keeps it fast, secure and simple. +.SH AUTHORS +See the LICENSE file for the authors. +.SH LICENSE +See the LICENSE file for the terms of redistribution. +.SH SEE ALSO +.BR tabbed (1), +.BR utmp (1), +.BR stty (1) +.SH BUGS +See the TODO file in the distribution. + diff --git a/st.c b/st.c new file mode 100644 index 0000000..c180375 --- /dev/null +++ b/st.c @@ -0,0 +1,2831 @@ +/* See LICENSE for license details. */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "st.h" +#include "win.h" + +#if defined(__linux) + #include +#elif defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) + #include +#elif defined(__FreeBSD__) || defined(__DragonFly__) + #include +#endif + +/* Arbitrary sizes */ +#define UTF_INVALID 0xFFFD +#define UTF_SIZ 4 +#define ESC_BUF_SIZ (128*UTF_SIZ) +#define ESC_ARG_SIZ 16 +#define STR_BUF_SIZ ESC_BUF_SIZ +#define STR_ARG_SIZ ESC_ARG_SIZ +#define HISTSIZE 2000 + +/* macros */ +#define IS_SET(flag) ((term.mode & (flag)) != 0) +#define NUMMAXLEN(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) +#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177') +#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) +#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) +#define ISDELIM(u) (u && wcschr(worddelimiters, u)) +#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \ + term.scr + HISTSIZE + 1) % HISTSIZE] : \ + term.line[(y) - term.scr]) + +#define TLINE_HIST(y) ((y) <= HISTSIZE-term.row+2 ? term.hist[(y)] : term.line[(y-HISTSIZE+term.row-3)]) + +/* constants */ +#define ISO14755CMD "dmenu -w \"$WINDOWID\" -p codepoint: ] [;]] []] */ +typedef struct { + char buf[ESC_BUF_SIZ]; /* raw string */ + int len; /* raw string length */ + char priv; + int arg[ESC_ARG_SIZ]; + int narg; /* nb of args */ + char mode[2]; +} CSIEscape; + +/* STR Escape sequence structs */ +/* ESC type [[ [] [;]] ] ESC '\' */ +typedef struct { + char type; /* ESC type ... */ + char buf[STR_BUF_SIZ]; /* raw string */ + int len; /* raw string length */ + char *args[STR_ARG_SIZ]; + int narg; /* nb of args */ +} STREscape; + +static void execsh(char *, char **); +static char *getcwd_by_pid(pid_t pid); +static void stty(char **); +static void sigchld(int); +static void ttywriteraw(const char *, size_t); + +static void csidump(void); +static void csihandle(void); +static void csiparse(void); +static void csireset(void); +static int eschandle(uchar); +static void strdump(void); +static void strhandle(void); +static void strparse(void); +static void strreset(void); + +static void tprinter(char *, size_t); +static void tdumpsel(void); +static void tdumpline(int); +static void tdump(void); +static void tclearregion(int, int, int, int); +static void tcursor(int); +static void tdeletechar(int); +static void tdeleteline(int); +static void tinsertblank(int); +static void tinsertblankline(int); +static int tlinelen(int); +static void tmoveto(int, int); +static void tmoveato(int, int); +static void tnewline(int); +static void tputtab(int); +static void tputc(Rune); +static void treset(void); +static void tscrollup(int, int, int); +static void tscrolldown(int, int, int); +static void tsetattr(const int *, int); +static void tsetchar(Rune, const Glyph *, int, int); +static void tsetdirt(int, int); +static void tsetscroll(int, int); +static void tswapscreen(void); +static void tsetmode(int, int, const int *, int); +static int twrite(const char *, int, int); +static void tfulldirt(void); +static void tcontrolcode(uchar ); +static void tdectest(char ); +static void tdefutf8(char); +static int32_t tdefcolor(const int *, int *, int); +static void tdeftran(char); +static void tstrsequence(uchar); + +static void drawregion(int, int, int, int); + +static void selnormalize(void); +static void selscroll(int, int); +static void selsnap(int *, int *, int); + +static size_t utf8decode(const char *, Rune *, size_t); +static Rune utf8decodebyte(char, size_t *); +static char utf8encodebyte(Rune, size_t); +static size_t utf8validate(Rune *, size_t); + +static char *base64dec(const char *); +static char base64dec_getc(const char **); + +static ssize_t xwrite(int, const char *, size_t); + +/* Globals */ +static Term term; +static Selection sel; +static CSIEscape csiescseq; +static STREscape strescseq; +static int iofd = 1; +static int cmdfd; +static pid_t pid; + +static const uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; +static const uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; +static const Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; +static const Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; + +ssize_t +xwrite(int fd, const char *s, size_t len) +{ + size_t aux = len; + ssize_t r; + + while (len > 0) { + r = write(fd, s, len); + if (r < 0) + return r; + len -= r; + s += r; + } + + return aux; +} + +void * +xmalloc(size_t len) +{ + void *p; + + if (!(p = malloc(len))) + die("malloc: %s\n", strerror(errno)); + + return p; +} + +void * +xrealloc(void *p, size_t len) +{ + if ((p = realloc(p, len)) == NULL) + die("realloc: %s\n", strerror(errno)); + + return p; +} + +char * +xstrdup(const char *s) +{ + char *p; + + if ((p = strdup(s)) == NULL) + die("strdup: %s\n", strerror(errno)); + + return p; +} + +size_t +utf8decode(const char *c, Rune *u, size_t clen) +{ + size_t i, j, len, type; + Rune udecoded; + + *u = UTF_INVALID; + if (!clen) + return 0; + udecoded = utf8decodebyte(c[0], &len); + if (!BETWEEN(len, 1, UTF_SIZ)) + return 1; + for (i = 1, j = 1; i < clen && j < len; ++i, ++j) { + udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type); + if (type != 0) + return j; + } + if (j < len) + return 0; + *u = udecoded; + utf8validate(u, len); + + return len; +} + +Rune +utf8decodebyte(char c, size_t *i) +{ + for (*i = 0; *i < LEN(utfmask); ++(*i)) + if (((uchar)c & utfmask[*i]) == utfbyte[*i]) + return (uchar)c & ~utfmask[*i]; + + return 0; +} + +size_t +utf8encode(Rune u, char *c) +{ + size_t len, i; + + len = utf8validate(&u, 0); + if (len > UTF_SIZ) + return 0; + + for (i = len - 1; i != 0; --i) { + c[i] = utf8encodebyte(u, 0); + u >>= 6; + } + c[0] = utf8encodebyte(u, len); + + return len; +} + +char +utf8encodebyte(Rune u, size_t i) +{ + return utfbyte[i] | (u & ~utfmask[i]); +} + +size_t +utf8validate(Rune *u, size_t i) +{ + if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF)) + *u = UTF_INVALID; + for (i = 1; *u > utfmax[i]; ++i) + ; + + return i; +} + +static const char base64_digits[] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 0, 0, 0, + 63, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, -1, 0, 0, 0, 0, 1, + 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, 0, 0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, + 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 +}; + +char +base64dec_getc(const char **src) +{ + while (**src && !isprint(**src)) (*src)++; + return *((*src)++); +} + +char * +base64dec(const char *src) +{ + size_t in_len = strlen(src); + char *result, *dst; + + if (in_len % 4) + in_len += 4 - (in_len % 4); + result = dst = xmalloc(in_len / 4 * 3 + 1); + while (*src) { + int a = base64_digits[(unsigned char) base64dec_getc(&src)]; + int b = base64_digits[(unsigned char) base64dec_getc(&src)]; + int c = base64_digits[(unsigned char) base64dec_getc(&src)]; + int d = base64_digits[(unsigned char) base64dec_getc(&src)]; + + *dst++ = (a << 2) | ((b & 0x30) >> 4); + if (c == -1) + break; + *dst++ = ((b & 0x0f) << 4) | ((c & 0x3c) >> 2); + if (d == -1) + break; + *dst++ = ((c & 0x03) << 6) | d; + } + *dst = '\0'; + return result; +} + +void +selinit(void) +{ + sel.mode = SEL_IDLE; + sel.snap = 0; + sel.ob.x = -1; +} + +int +tlinelen(int y) +{ + int i = term.col; + + if (TLINE(y)[i - 1].mode & ATTR_WRAP) + return i; + + while (i > 0 && TLINE(y)[i - 1].u == ' ') + --i; + + return i; +} + +int +tlinehistlen(int y) +{ + int i = term.col; + + if (TLINE_HIST(y)[i - 1].mode & ATTR_WRAP) + return i; + + while (i > 0 && TLINE_HIST(y)[i - 1].u == ' ') + --i; + + return i; +} + +void +selstart(int col, int row, int snap) +{ + selclear(); + sel.mode = SEL_EMPTY; + sel.type = SEL_REGULAR; + sel.alt = IS_SET(MODE_ALTSCREEN); + sel.snap = snap; + sel.oe.x = sel.ob.x = col; + sel.oe.y = sel.ob.y = row; + selnormalize(); + + if (sel.snap != 0) + sel.mode = SEL_READY; + tsetdirt(sel.nb.y, sel.ne.y); +} + +void +selextend(int col, int row, int type, int done) +{ + int oldey, oldex, oldsby, oldsey, oldtype; + + if (sel.mode == SEL_IDLE) + return; + if (done && sel.mode == SEL_EMPTY) { + selclear(); + return; + } + + oldey = sel.oe.y; + oldex = sel.oe.x; + oldsby = sel.nb.y; + oldsey = sel.ne.y; + oldtype = sel.type; + + sel.oe.x = col; + sel.oe.y = row; + selnormalize(); + sel.type = type; + + if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type || sel.mode == SEL_EMPTY) + tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey)); + + sel.mode = done ? SEL_IDLE : SEL_READY; +} + +void +selnormalize(void) +{ + int i; + + if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) { + sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x; + sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x; + } else { + sel.nb.x = MIN(sel.ob.x, sel.oe.x); + sel.ne.x = MAX(sel.ob.x, sel.oe.x); + } + sel.nb.y = MIN(sel.ob.y, sel.oe.y); + sel.ne.y = MAX(sel.ob.y, sel.oe.y); + + selsnap(&sel.nb.x, &sel.nb.y, -1); + selsnap(&sel.ne.x, &sel.ne.y, +1); + + /* expand selection over line breaks */ + if (sel.type == SEL_RECTANGULAR) + return; + i = tlinelen(sel.nb.y); + if (i < sel.nb.x) + sel.nb.x = i; + if (tlinelen(sel.ne.y) <= sel.ne.x) + sel.ne.x = term.col - 1; +} + +int +selected(int x, int y) +{ + if (sel.mode == SEL_EMPTY || sel.ob.x == -1 || + sel.alt != IS_SET(MODE_ALTSCREEN)) + return 0; + + if (sel.type == SEL_RECTANGULAR) + return BETWEEN(y, sel.nb.y, sel.ne.y) + && BETWEEN(x, sel.nb.x, sel.ne.x); + + return BETWEEN(y, sel.nb.y, sel.ne.y) + && (y != sel.nb.y || x >= sel.nb.x) + && (y != sel.ne.y || x <= sel.ne.x); +} + +void +selsnap(int *x, int *y, int direction) +{ + int newx, newy, xt, yt; + int delim, prevdelim; + const Glyph *gp, *prevgp; + + switch (sel.snap) { + case SNAP_WORD: + /* + * Snap around if the word wraps around at the end or + * beginning of a line. + */ + prevgp = &TLINE(*y)[*x]; + prevdelim = ISDELIM(prevgp->u); + for (;;) { + newx = *x + direction; + newy = *y; + if (!BETWEEN(newx, 0, term.col - 1)) { + newy += direction; + newx = (newx + term.col) % term.col; + if (!BETWEEN(newy, 0, term.row - 1)) + break; + + if (direction > 0) + yt = *y, xt = *x; + else + yt = newy, xt = newx; + if (!(TLINE(yt)[xt].mode & ATTR_WRAP)) + break; + } + + if (newx >= tlinelen(newy)) + break; + + gp = &TLINE(newy)[newx]; + delim = ISDELIM(gp->u); + if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim + || (delim && gp->u != prevgp->u))) + break; + + *x = newx; + *y = newy; + prevgp = gp; + prevdelim = delim; + } + break; + case SNAP_LINE: + /* + * Snap around if the the previous line or the current one + * has set ATTR_WRAP at its end. Then the whole next or + * previous line will be selected. + */ + *x = (direction < 0) ? 0 : term.col - 1; + if (direction < 0) { + for (; *y > 0; *y += direction) { + if (!(TLINE(*y-1)[term.col-1].mode + & ATTR_WRAP)) { + break; + } + } + } else if (direction > 0) { + for (; *y < term.row-1; *y += direction) { + if (!(TLINE(*y)[term.col-1].mode + & ATTR_WRAP)) { + break; + } + } + } + break; + } +} + +char * +getsel(void) +{ + char *str, *ptr; + int y, bufsize, lastx, linelen; + const Glyph *gp, *last; + + if (sel.ob.x == -1) + return NULL; + + bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ; + ptr = str = xmalloc(bufsize); + + /* append every set & selected glyph to the selection */ + for (y = sel.nb.y; y <= sel.ne.y; y++) { + if ((linelen = tlinelen(y)) == 0) { + *ptr++ = '\n'; + continue; + } + + if (sel.type == SEL_RECTANGULAR) { + gp = &TLINE(y)[sel.nb.x]; + lastx = sel.ne.x; + } else { + gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; + lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; + } + last = &TLINE(y)[MIN(lastx, linelen-1)]; + while (last >= gp && last->u == ' ') + --last; + + for ( ; gp <= last; ++gp) { + if (gp->mode & ATTR_WDUMMY) + continue; + + ptr += utf8encode(gp->u, ptr); + } + + /* + * Copy and pasting of line endings is inconsistent + * in the inconsistent terminal and GUI world. + * The best solution seems like to produce '\n' when + * something is copied from st and convert '\n' to + * '\r', when something to be pasted is received by + * st. + * FIXME: Fix the computer world. + */ + if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP)) + *ptr++ = '\n'; + } + *ptr = 0; + return str; +} + +void +selclear(void) +{ + if (sel.ob.x == -1) + return; + sel.mode = SEL_IDLE; + sel.ob.x = -1; + tsetdirt(sel.nb.y, sel.ne.y); +} + +void +die(const char *errstr, ...) +{ + va_list ap; + + va_start(ap, errstr); + vfprintf(stderr, errstr, ap); + va_end(ap); + exit(1); +} + +void +execsh(char *cmd, char **args) +{ + char *sh, *prog; + const struct passwd *pw; + + errno = 0; + if ((pw = getpwuid(getuid())) == NULL) { + if (errno) + die("getpwuid: %s\n", strerror(errno)); + else + die("who are you?\n"); + } + + if ((sh = getenv("SHELL")) == NULL) + sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd; + + if (args) + prog = args[0]; + else if (utmp) + prog = utmp; + else + prog = sh; + DEFAULT(args, ((char *[]) {prog, NULL})); + + unsetenv("COLUMNS"); + unsetenv("LINES"); + unsetenv("TERMCAP"); + setenv("LOGNAME", pw->pw_name, 1); + setenv("USER", pw->pw_name, 1); + setenv("SHELL", sh, 1); + setenv("HOME", pw->pw_dir, 1); + setenv("TERM", termname, 1); + + signal(SIGCHLD, SIG_DFL); + signal(SIGHUP, SIG_DFL); + signal(SIGINT, SIG_DFL); + signal(SIGQUIT, SIG_DFL); + signal(SIGTERM, SIG_DFL); + signal(SIGALRM, SIG_DFL); + + execvp(prog, args); + _exit(1); +} + +void +sigchld(int a) +{ + int stat; + pid_t p; + + if ((p = waitpid(pid, &stat, WNOHANG)) < 0) + die("waiting for pid %hd failed: %s\n", pid, strerror(errno)); + + if (pid != p) + return; + + if (WIFEXITED(stat) && WEXITSTATUS(stat)) + die("child exited with status %d\n", WEXITSTATUS(stat)); + else if (WIFSIGNALED(stat)) + die("child terminated due to signal %d\n", WTERMSIG(stat)); + exit(0); +} + +void +stty(char **args) +{ + char cmd[_POSIX_ARG_MAX], **p, *q, *s; + size_t n, siz; + + if ((n = strlen(stty_args)) > sizeof(cmd)-1) + die("incorrect stty parameters\n"); + memcpy(cmd, stty_args, n); + q = cmd + n; + siz = sizeof(cmd) - n; + for (p = args; p && (s = *p); ++p) { + if ((n = strlen(s)) > siz-1) + die("stty parameter length too long\n"); + *q++ = ' '; + memcpy(q, s, n); + q += n; + siz -= n + 1; + } + *q = '\0'; + if (system(cmd) != 0) + perror("Couldn't call stty"); +} + +int +ttynew(const char *line, char *cmd, const char *out, char **args) +{ + int m, s; + + if (out) { + term.mode |= MODE_PRINT; + iofd = (!strcmp(out, "-")) ? + 1 : open(out, O_WRONLY | O_CREAT, 0666); + if (iofd < 0) { + fprintf(stderr, "Error opening %s:%s\n", + out, strerror(errno)); + } + } + + if (line) { + if ((cmdfd = open(line, O_RDWR)) < 0) + die("open line '%s' failed: %s\n", + line, strerror(errno)); + dup2(cmdfd, 0); + stty(args); + return cmdfd; + } + + /* seems to work fine on linux, openbsd and freebsd */ + if (openpty(&m, &s, NULL, NULL, NULL) < 0) + die("openpty failed: %s\n", strerror(errno)); + + switch (pid = fork()) { + case -1: + die("fork failed: %s\n", strerror(errno)); + break; + case 0: + close(iofd); + close(m); + setsid(); /* create a new process group */ + dup2(s, 0); + dup2(s, 1); + dup2(s, 2); + if (ioctl(s, TIOCSCTTY, NULL) < 0) + die("ioctl TIOCSCTTY failed: %s\n", strerror(errno)); + if (s > 2) + close(s); +#ifdef __OpenBSD__ + if (pledge("stdio getpw proc exec", NULL) == -1) + die("pledge\n"); +#endif + execsh(cmd, args); + break; + default: +#ifdef __OpenBSD__ + if (pledge("stdio rpath tty proc", NULL) == -1) + die("pledge\n"); +#endif + close(s); + cmdfd = m; + signal(SIGCHLD, sigchld); + break; + } + return cmdfd; +} + +size_t +ttyread(void) +{ + static char buf[BUFSIZ]; + static int buflen = 0; + int written; + int ret; + + /* append read bytes to unprocessed bytes */ + if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) + die("couldn't read from shell: %s\n", strerror(errno)); + buflen += ret; + + written = twrite(buf, buflen, 0); + buflen -= written; + /* keep any uncomplete utf8 char for the next call */ + if (buflen > 0) + memmove(buf, buf + written, buflen); + + return ret; +} + +void +ttywrite(const char *s, size_t n, int may_echo) +{ + const char *next; + Arg arg = (Arg) { .i = term.scr }; + + kscrolldown(&arg); + + if (may_echo && IS_SET(MODE_ECHO)) + twrite(s, n, 1); + + if (!IS_SET(MODE_CRLF)) { + ttywriteraw(s, n); + return; + } + + /* This is similar to how the kernel handles ONLCR for ttys */ + while (n > 0) { + if (*s == '\r') { + next = s + 1; + ttywriteraw("\r\n", 2); + } else { + next = memchr(s, '\r', n); + DEFAULT(next, s + n); + ttywriteraw(s, next - s); + } + n -= next - s; + s = next; + } +} + +void +ttywriteraw(const char *s, size_t n) +{ + fd_set wfd, rfd; + ssize_t r; + size_t lim = 256; + + /* + * Remember that we are using a pty, which might be a modem line. + * Writing too much will clog the line. That's why we are doing this + * dance. + * FIXME: Migrate the world to Plan 9. + */ + while (n > 0) { + FD_ZERO(&wfd); + FD_ZERO(&rfd); + FD_SET(cmdfd, &wfd); + FD_SET(cmdfd, &rfd); + + /* Check if we can write. */ + if (pselect(cmdfd+1, &rfd, &wfd, NULL, NULL, NULL) < 0) { + if (errno == EINTR) + continue; + die("select failed: %s\n", strerror(errno)); + } + if (FD_ISSET(cmdfd, &wfd)) { + /* + * Only write the bytes written by ttywrite() or the + * default of 256. This seems to be a reasonable value + * for a serial line. Bigger values might clog the I/O. + */ + if ((r = write(cmdfd, s, (n < lim)? n : lim)) < 0) + goto write_error; + if (r < n) { + /* + * We weren't able to write out everything. + * This means the buffer is getting full + * again. Empty it. + */ + if (n < lim) + lim = ttyread(); + n -= r; + s += r; + } else { + /* All bytes have been written. */ + break; + } + } + if (FD_ISSET(cmdfd, &rfd)) + lim = ttyread(); + } + return; + +write_error: + die("write error on tty: %s\n", strerror(errno)); +} + +void +ttyresize(int tw, int th) +{ + struct winsize w; + + w.ws_row = term.row; + w.ws_col = term.col; + w.ws_xpixel = tw; + w.ws_ypixel = th; + if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0) + fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno)); +} + +void +ttyhangup() +{ + /* Send SIGHUP to shell */ + kill(pid, SIGHUP); +} + +int +tattrset(int attr) +{ + int i, j; + + for (i = 0; i < term.row-1; i++) { + for (j = 0; j < term.col-1; j++) { + if (term.line[i][j].mode & attr) + return 1; + } + } + + return 0; +} + +void +tsetdirt(int top, int bot) +{ + int i; + + LIMIT(top, 0, term.row-1); + LIMIT(bot, 0, term.row-1); + + for (i = top; i <= bot; i++) + term.dirty[i] = 1; +} + +void +tsetdirtattr(int attr) +{ + int i, j; + + for (i = 0; i < term.row-1; i++) { + for (j = 0; j < term.col-1; j++) { + if (term.line[i][j].mode & attr) { + tsetdirt(i, i); + break; + } + } + } +} + +void +tfulldirt(void) +{ + tsetdirt(0, term.row-1); +} + +void +tcursor(int mode) +{ + static TCursor c[2]; + int alt = IS_SET(MODE_ALTSCREEN); + + if (mode == CURSOR_SAVE) { + c[alt] = term.c; + } else if (mode == CURSOR_LOAD) { + term.c = c[alt]; + tmoveto(c[alt].x, c[alt].y); + } +} + +void +treset(void) +{ + uint i; + + term.c = (TCursor){{ + .mode = ATTR_NULL, + .fg = defaultfg, + .bg = defaultbg + }, .x = 0, .y = 0, .state = CURSOR_DEFAULT}; + + memset(term.tabs, 0, term.col * sizeof(*term.tabs)); + for (i = tabspaces; i < term.col; i += tabspaces) + term.tabs[i] = 1; + term.top = 0; + term.bot = term.row - 1; + term.mode = MODE_WRAP|MODE_UTF8; + memset(term.trantbl, CS_USA, sizeof(term.trantbl)); + term.charset = 0; + + for (i = 0; i < 2; i++) { + tmoveto(0, 0); + tcursor(CURSOR_SAVE); + tclearregion(0, 0, term.col-1, term.row-1); + tswapscreen(); + } +} + +void +tnew(int col, int row) +{ + term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } }; + clock_gettime(CLOCK_MONOTONIC, &term.last_ximspot_update); + tresize(col, row); + treset(); +} + +int tisaltscr(void) +{ + return IS_SET(MODE_ALTSCREEN); +} + +void +tswapscreen(void) +{ + Line *tmp = term.line; + + term.line = term.alt; + term.alt = tmp; + term.mode ^= MODE_ALTSCREEN; + tfulldirt(); +} + +void +newterm(const Arg* a) +{ + switch (fork()) { + case -1: + die("fork failed: %s\n", strerror(errno)); + break; + case 0: + chdir(getcwd_by_pid(pid)); + execlp("st", "./st", NULL); + break; + } +} + +static char *getcwd_by_pid(pid_t pid) { + char buf[32]; + snprintf(buf, sizeof buf, "/proc/%d/cwd", pid); + return realpath(buf, NULL); +} + +void +kscrolldown(const Arg* a) +{ + int n = a->i; + + if (n < 0) + n = term.row + n; + + if (n > term.scr) + n = term.scr; + + if (term.scr > 0) { + term.scr -= n; + selscroll(0, -n); + tfulldirt(); + } +} + +void +kscrollup(const Arg* a) +{ + int n = a->i; + + if (n < 0) + n = term.row + n; + + if (term.scr <= HISTSIZE-n) { + term.scr += n; + selscroll(0, n); + tfulldirt(); + } +} + +void +tscrolldown(int orig, int n, int copyhist) +{ + int i; + Line temp; + + LIMIT(n, 0, term.bot-orig+1); + + if (copyhist) { + term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE; + temp = term.hist[term.histi]; + term.hist[term.histi] = term.line[term.bot]; + term.line[term.bot] = temp; + } + + tsetdirt(orig, term.bot-n); + tclearregion(0, term.bot-n+1, term.col-1, term.bot); + + for (i = term.bot; i >= orig+n; i--) { + temp = term.line[i]; + term.line[i] = term.line[i-n]; + term.line[i-n] = temp; + } + + selscroll(orig, n); +} + +void +tscrollup(int orig, int n, int copyhist) +{ + int i; + Line temp; + + LIMIT(n, 0, term.bot-orig+1); + + if (copyhist) { + term.histi = (term.histi + 1) % HISTSIZE; + temp = term.hist[term.histi]; + term.hist[term.histi] = term.line[orig]; + term.line[orig] = temp; + } + + if (term.scr > 0 && term.scr < HISTSIZE) + term.scr = MIN(term.scr + n, HISTSIZE-1); + + tclearregion(0, orig, term.col-1, orig+n-1); + tsetdirt(orig+n, term.bot); + + for (i = orig; i <= term.bot-n; i++) { + temp = term.line[i]; + term.line[i] = term.line[i+n]; + term.line[i+n] = temp; + } + + selscroll(orig, -n); +} + +void +selscroll(int orig, int n) +{ + if (sel.ob.x == -1) + return; + + if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) { + if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) { + selclear(); + return; + } + if (sel.type == SEL_RECTANGULAR) { + if (sel.ob.y < term.top) + sel.ob.y = term.top; + if (sel.oe.y > term.bot) + sel.oe.y = term.bot; + } else { + if (sel.ob.y < term.top) { + sel.ob.y = term.top; + sel.ob.x = 0; + } + if (sel.oe.y > term.bot) { + sel.oe.y = term.bot; + sel.oe.x = term.col; + } + } + selnormalize(); + } +} + +void +tnewline(int first_col) +{ + int y = term.c.y; + + if (y == term.bot) { + tscrollup(term.top, 1, 1); + } else { + y++; + } + tmoveto(first_col ? 0 : term.c.x, y); +} + +void +csiparse(void) +{ + char *p = csiescseq.buf, *np; + long int v; + + csiescseq.narg = 0; + if (*p == '?') { + csiescseq.priv = 1; + p++; + } + + csiescseq.buf[csiescseq.len] = '\0'; + while (p < csiescseq.buf+csiescseq.len) { + np = NULL; + v = strtol(p, &np, 10); + if (np == p) + v = 0; + if (v == LONG_MAX || v == LONG_MIN) + v = -1; + csiescseq.arg[csiescseq.narg++] = v; + p = np; + if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ) + break; + p++; + } + csiescseq.mode[0] = *p++; + csiescseq.mode[1] = (p < csiescseq.buf+csiescseq.len) ? *p : '\0'; +} + +/* for absolute user moves, when decom is set */ +void +tmoveato(int x, int y) +{ + tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0)); +} + +void +tmoveto(int x, int y) +{ + int miny, maxy; + + if (term.c.state & CURSOR_ORIGIN) { + miny = term.top; + maxy = term.bot; + } else { + miny = 0; + maxy = term.row - 1; + } + term.c.state &= ~CURSOR_WRAPNEXT; + term.c.x = LIMIT(x, 0, term.col-1); + term.c.y = LIMIT(y, miny, maxy); +} + +void +tsetchar(Rune u,const Glyph *attr, int x, int y) +{ + static const char *vt100_0[62] = { /* 0x41 - 0x7e */ + "↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */ + 0, 0, 0, 0, 0, 0, 0, 0, /* H - O */ + 0, 0, 0, 0, 0, 0, 0, 0, /* P - W */ + 0, 0, 0, 0, 0, 0, 0, " ", /* X - _ */ + "◆", "▒", "␉", "␌", "␍", "␊", "°", "±", /* ` - g */ + "␤", "␋", "┘", "┐", "┌", "└", "┼", "⎺", /* h - o */ + "⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */ + "│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */ + }; + + /* + * The table is proudly stolen from rxvt. + */ + if (term.trantbl[term.charset] == CS_GRAPHIC0 && + BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41]) + utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ); + + if (term.line[y][x].mode & ATTR_WIDE) { + if (x+1 < term.col) { + term.line[y][x+1].u = ' '; + term.line[y][x+1].mode &= ~ATTR_WDUMMY; + } + } else if (term.line[y][x].mode & ATTR_WDUMMY) { + term.line[y][x-1].u = ' '; + term.line[y][x-1].mode &= ~ATTR_WIDE; + } + + term.dirty[y] = 1; + term.line[y][x] = *attr; + term.line[y][x].u = u; + + if (isboxdraw(u)) + term.line[y][x].mode |= ATTR_BOXDRAW; +} + +void +tclearregion(int x1, int y1, int x2, int y2) +{ + int x, y, temp; + Glyph *gp; + + if (x1 > x2) + temp = x1, x1 = x2, x2 = temp; + if (y1 > y2) + temp = y1, y1 = y2, y2 = temp; + + LIMIT(x1, 0, term.maxcol-1); + LIMIT(x2, 0, term.maxcol-1); + LIMIT(y1, 0, term.row-1); + LIMIT(y2, 0, term.row-1); + + for (y = y1; y <= y2; y++) { + term.dirty[y] = 1; + for (x = x1; x <= x2; x++) { + gp = &term.line[y][x]; + if (selected(x, y)) + selclear(); + gp->fg = term.c.attr.fg; + gp->bg = term.c.attr.bg; + gp->mode = 0; + gp->u = ' '; + } + } +} + +void +tdeletechar(int n) +{ + int dst, src, size; + Glyph *line; + + LIMIT(n, 0, term.col - term.c.x); + + dst = term.c.x; + src = term.c.x + n; + size = term.col - src; + line = term.line[term.c.y]; + + memmove(&line[dst], &line[src], size * sizeof(Glyph)); + tclearregion(term.col-n, term.c.y, term.col-1, term.c.y); +} + +void +tinsertblank(int n) +{ + int dst, src, size; + Glyph *line; + + LIMIT(n, 0, term.col - term.c.x); + + dst = term.c.x + n; + src = term.c.x; + size = term.col - dst; + line = term.line[term.c.y]; + + memmove(&line[dst], &line[src], size * sizeof(Glyph)); + tclearregion(src, term.c.y, dst - 1, term.c.y); +} + +void +tinsertblankline(int n) +{ + if (BETWEEN(term.c.y, term.top, term.bot)) + tscrolldown(term.c.y, n, 0); +} + +void +tdeleteline(int n) +{ + if (BETWEEN(term.c.y, term.top, term.bot)) + tscrollup(term.c.y, n, 0); +} + +int32_t +tdefcolor(const int *attr, int *npar, int l) +{ + int32_t idx = -1; + uint r, g, b; + + switch (attr[*npar + 1]) { + case 2: /* direct color in RGB space */ + if (*npar + 4 >= l) { + fprintf(stderr, + "erresc(38): Incorrect number of parameters (%d)\n", + *npar); + break; + } + r = attr[*npar + 2]; + g = attr[*npar + 3]; + b = attr[*npar + 4]; + *npar += 4; + if (!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255)) + fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n", + r, g, b); + else + idx = TRUECOLOR(r, g, b); + break; + case 5: /* indexed color */ + if (*npar + 2 >= l) { + fprintf(stderr, + "erresc(38): Incorrect number of parameters (%d)\n", + *npar); + break; + } + *npar += 2; + if (!BETWEEN(attr[*npar], 0, 255)) + fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]); + else + idx = attr[*npar]; + break; + case 0: /* implemented defined (only foreground) */ + case 1: /* transparent */ + case 3: /* direct color in CMY space */ + case 4: /* direct color in CMYK space */ + default: + fprintf(stderr, + "erresc(38): gfx attr %d unknown\n", attr[*npar]); + break; + } + + return idx; +} + +void +tsetattr(const int *attr, int l) +{ + int i; + int32_t idx; + + for (i = 0; i < l; i++) { + switch (attr[i]) { + case 0: + term.c.attr.mode &= ~( + ATTR_BOLD | + ATTR_FAINT | + ATTR_ITALIC | + ATTR_UNDERLINE | + ATTR_BLINK | + ATTR_REVERSE | + ATTR_INVISIBLE | + ATTR_STRUCK ); + term.c.attr.fg = defaultfg; + term.c.attr.bg = defaultbg; + break; + case 1: + term.c.attr.mode |= ATTR_BOLD; + break; + case 2: + term.c.attr.mode |= ATTR_FAINT; + break; + case 3: + term.c.attr.mode |= ATTR_ITALIC; + break; + case 4: + term.c.attr.mode |= ATTR_UNDERLINE; + break; + case 5: /* slow blink */ + /* FALLTHROUGH */ + case 6: /* rapid blink */ + term.c.attr.mode |= ATTR_BLINK; + break; + case 7: + term.c.attr.mode |= ATTR_REVERSE; + break; + case 8: + term.c.attr.mode |= ATTR_INVISIBLE; + break; + case 9: + term.c.attr.mode |= ATTR_STRUCK; + break; + case 22: + term.c.attr.mode &= ~(ATTR_BOLD | ATTR_FAINT); + break; + case 23: + term.c.attr.mode &= ~ATTR_ITALIC; + break; + case 24: + term.c.attr.mode &= ~ATTR_UNDERLINE; + break; + case 25: + term.c.attr.mode &= ~ATTR_BLINK; + break; + case 27: + term.c.attr.mode &= ~ATTR_REVERSE; + break; + case 28: + term.c.attr.mode &= ~ATTR_INVISIBLE; + break; + case 29: + term.c.attr.mode &= ~ATTR_STRUCK; + break; + case 38: + if ((idx = tdefcolor(attr, &i, l)) >= 0) + term.c.attr.fg = idx; + break; + case 39: + term.c.attr.fg = defaultfg; + break; + case 48: + if ((idx = tdefcolor(attr, &i, l)) >= 0) + term.c.attr.bg = idx; + break; + case 49: + term.c.attr.bg = defaultbg; + break; + default: + if (BETWEEN(attr[i], 30, 37)) { + term.c.attr.fg = attr[i] - 30; + } else if (BETWEEN(attr[i], 40, 47)) { + term.c.attr.bg = attr[i] - 40; + } else if (BETWEEN(attr[i], 90, 97)) { + term.c.attr.fg = attr[i] - 90 + 8; + } else if (BETWEEN(attr[i], 100, 107)) { + term.c.attr.bg = attr[i] - 100 + 8; + } else { + fprintf(stderr, + "erresc(default): gfx attr %d unknown\n", + attr[i]); + csidump(); + } + break; + } + } +} + +void +tsetscroll(int t, int b) +{ + int temp; + + LIMIT(t, 0, term.row-1); + LIMIT(b, 0, term.row-1); + if (t > b) { + temp = t; + t = b; + b = temp; + } + term.top = t; + term.bot = b; +} + +void +tsetmode(int priv, int set,const int *args, int narg) +{ + int alt; const int *lim; + + for (lim = args + narg; args < lim; ++args) { + if (priv) { + switch (*args) { + case 1: /* DECCKM -- Cursor key */ + xsetmode(set, MODE_APPCURSOR); + break; + case 5: /* DECSCNM -- Reverse video */ + xsetmode(set, MODE_REVERSE); + break; + case 6: /* DECOM -- Origin */ + MODBIT(term.c.state, set, CURSOR_ORIGIN); + tmoveato(0, 0); + break; + case 7: /* DECAWM -- Auto wrap */ + MODBIT(term.mode, set, MODE_WRAP); + break; + case 0: /* Error (IGNORED) */ + case 2: /* DECANM -- ANSI/VT52 (IGNORED) */ + case 3: /* DECCOLM -- Column (IGNORED) */ + case 4: /* DECSCLM -- Scroll (IGNORED) */ + case 8: /* DECARM -- Auto repeat (IGNORED) */ + case 18: /* DECPFF -- Printer feed (IGNORED) */ + case 19: /* DECPEX -- Printer extent (IGNORED) */ + case 42: /* DECNRCM -- National characters (IGNORED) */ + case 12: /* att610 -- Start blinking cursor (IGNORED) */ + break; + case 25: /* DECTCEM -- Text Cursor Enable Mode */ + xsetmode(!set, MODE_HIDE); + break; + case 9: /* X10 mouse compatibility mode */ + xsetpointermotion(0); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEX10); + break; + case 1000: /* 1000: report button press */ + xsetpointermotion(0); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEBTN); + break; + case 1002: /* 1002: report motion on button press */ + xsetpointermotion(0); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEMOTION); + break; + case 1003: /* 1003: enable all mouse motions */ + xsetpointermotion(set); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEMANY); + break; + case 1004: /* 1004: send focus events to tty */ + xsetmode(set, MODE_FOCUS); + break; + case 1006: /* 1006: extended reporting mode */ + xsetmode(set, MODE_MOUSESGR); + break; + case 1034: + xsetmode(set, MODE_8BIT); + break; + case 1049: /* swap screen & set/restore cursor as xterm */ + if (!allowaltscreen) + break; + tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); + /* FALLTHROUGH */ + case 47: /* swap screen */ + case 1047: + if (!allowaltscreen) + break; + alt = IS_SET(MODE_ALTSCREEN); + if (alt) { + tclearregion(0, 0, term.col-1, + term.row-1); + } + if (set ^ alt) /* set is always 1 or 0 */ + tswapscreen(); + if (*args != 1049) + break; + /* FALLTHROUGH */ + case 1048: + tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); + break; + case 2004: /* 2004: bracketed paste mode */ + xsetmode(set, MODE_BRCKTPASTE); + break; + /* Not implemented mouse modes. See comments there. */ + case 1001: /* mouse highlight mode; can hang the + terminal by design when implemented. */ + case 1005: /* UTF-8 mouse mode; will confuse + applications not supporting UTF-8 + and luit. */ + case 1015: /* urxvt mangled mouse mode; incompatible + and can be mistaken for other control + codes. */ + break; + default: + fprintf(stderr, + "erresc: unknown private set/reset mode %d\n", + *args); + break; + } + } else { + switch (*args) { + case 0: /* Error (IGNORED) */ + break; + case 2: + xsetmode(set, MODE_KBDLOCK); + break; + case 4: /* IRM -- Insertion-replacement */ + MODBIT(term.mode, set, MODE_INSERT); + break; + case 12: /* SRM -- Send/Receive */ + MODBIT(term.mode, !set, MODE_ECHO); + break; + case 20: /* LNM -- Linefeed/new line */ + MODBIT(term.mode, set, MODE_CRLF); + break; + default: + fprintf(stderr, + "erresc: unknown set/reset mode %d\n", + *args); + break; + } + } + } +} + +void +csihandle(void) +{ + char buf[40]; + int len; + + switch (csiescseq.mode[0]) { + default: + unknown: + fprintf(stderr, "erresc: unknown csi "); + csidump(); + /* die(""); */ + break; + case '@': /* ICH -- Insert blank char */ + DEFAULT(csiescseq.arg[0], 1); + tinsertblank(csiescseq.arg[0]); + break; + case 'A': /* CUU -- Cursor Up */ + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x, term.c.y-csiescseq.arg[0]); + break; + case 'B': /* CUD -- Cursor Down */ + case 'e': /* VPR --Cursor Down */ + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x, term.c.y+csiescseq.arg[0]); + break; + case 'i': /* MC -- Media Copy */ + switch (csiescseq.arg[0]) { + case 0: + tdump(); + break; + case 1: + tdumpline(term.c.y); + break; + case 2: + tdumpsel(); + break; + case 4: + term.mode &= ~MODE_PRINT; + break; + case 5: + term.mode |= MODE_PRINT; + break; + } + break; + case 'c': /* DA -- Device Attributes */ + if (csiescseq.arg[0] == 0) + ttywrite(vtiden, strlen(vtiden), 0); + break; + case 'C': /* CUF -- Cursor Forward */ + case 'a': /* HPR -- Cursor Forward */ + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x+csiescseq.arg[0], term.c.y); + break; + case 'D': /* CUB -- Cursor Backward */ + DEFAULT(csiescseq.arg[0], 1); + tmoveto(term.c.x-csiescseq.arg[0], term.c.y); + break; + case 'E': /* CNL -- Cursor Down and first col */ + DEFAULT(csiescseq.arg[0], 1); + tmoveto(0, term.c.y+csiescseq.arg[0]); + break; + case 'F': /* CPL -- Cursor Up and first col */ + DEFAULT(csiescseq.arg[0], 1); + tmoveto(0, term.c.y-csiescseq.arg[0]); + break; + case 'g': /* TBC -- Tabulation clear */ + switch (csiescseq.arg[0]) { + case 0: /* clear current tab stop */ + term.tabs[term.c.x] = 0; + break; + case 3: /* clear all the tabs */ + memset(term.tabs, 0, term.col * sizeof(*term.tabs)); + break; + default: + goto unknown; + } + break; + case 'G': /* CHA -- Move to */ + case '`': /* HPA */ + DEFAULT(csiescseq.arg[0], 1); + tmoveto(csiescseq.arg[0]-1, term.c.y); + break; + case 'H': /* CUP -- Move to */ + case 'f': /* HVP */ + DEFAULT(csiescseq.arg[0], 1); + DEFAULT(csiescseq.arg[1], 1); + tmoveato(csiescseq.arg[1]-1, csiescseq.arg[0]-1); + break; + case 'I': /* CHT -- Cursor Forward Tabulation tab stops */ + DEFAULT(csiescseq.arg[0], 1); + tputtab(csiescseq.arg[0]); + break; + case 'J': /* ED -- Clear screen */ + switch (csiescseq.arg[0]) { + case 0: /* below */ + tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); + if (term.c.y < term.row-1) { + tclearregion(0, term.c.y+1, term.col-1, + term.row-1); + } + break; + case 1: /* above */ + if (term.c.y > 1) + tclearregion(0, 0, term.col-1, term.c.y-1); + tclearregion(0, term.c.y, term.c.x, term.c.y); + break; + case 2: /* all */ + tclearregion(0, 0, term.col-1, term.row-1); + break; + default: + goto unknown; + } + break; + case 'K': /* EL -- Clear line */ + switch (csiescseq.arg[0]) { + case 0: /* right */ + tclearregion(term.c.x, term.c.y, term.col-1, + term.c.y); + break; + case 1: /* left */ + tclearregion(0, term.c.y, term.c.x, term.c.y); + break; + case 2: /* all */ + tclearregion(0, term.c.y, term.col-1, term.c.y); + break; + } + break; + case 'S': /* SU -- Scroll line up */ + DEFAULT(csiescseq.arg[0], 1); + tscrollup(term.top, csiescseq.arg[0], 0); + break; + case 'T': /* SD -- Scroll line down */ + DEFAULT(csiescseq.arg[0], 1); + tscrolldown(term.top, csiescseq.arg[0], 0); + break; + case 'L': /* IL -- Insert blank lines */ + DEFAULT(csiescseq.arg[0], 1); + tinsertblankline(csiescseq.arg[0]); + break; + case 'l': /* RM -- Reset Mode */ + tsetmode(csiescseq.priv, 0, csiescseq.arg, csiescseq.narg); + break; + case 'M': /* DL -- Delete lines */ + DEFAULT(csiescseq.arg[0], 1); + tdeleteline(csiescseq.arg[0]); + break; + case 'X': /* ECH -- Erase char */ + DEFAULT(csiescseq.arg[0], 1); + tclearregion(term.c.x, term.c.y, + term.c.x + csiescseq.arg[0] - 1, term.c.y); + break; + case 'P': /* DCH -- Delete char */ + DEFAULT(csiescseq.arg[0], 1); + tdeletechar(csiescseq.arg[0]); + break; + case 'Z': /* CBT -- Cursor Backward Tabulation tab stops */ + DEFAULT(csiescseq.arg[0], 1); + tputtab(-csiescseq.arg[0]); + break; + case 'd': /* VPA -- Move to */ + DEFAULT(csiescseq.arg[0], 1); + tmoveato(term.c.x, csiescseq.arg[0]-1); + break; + case 'h': /* SM -- Set terminal mode */ + tsetmode(csiescseq.priv, 1, csiescseq.arg, csiescseq.narg); + break; + case 'm': /* SGR -- Terminal attribute (color) */ + tsetattr(csiescseq.arg, csiescseq.narg); + break; + case 'n': /* DSR – Device Status Report (cursor position) */ + if (csiescseq.arg[0] == 6) { + len = snprintf(buf, sizeof(buf),"\033[%i;%iR", + term.c.y+1, term.c.x+1); + ttywrite(buf, len, 0); + } + break; + case 'r': /* DECSTBM -- Set Scrolling Region */ + if (csiescseq.priv) { + goto unknown; + } else { + DEFAULT(csiescseq.arg[0], 1); + DEFAULT(csiescseq.arg[1], term.row); + tsetscroll(csiescseq.arg[0]-1, csiescseq.arg[1]-1); + tmoveato(0, 0); + } + break; + case 's': /* DECSC -- Save cursor position (ANSI.SYS) */ + tcursor(CURSOR_SAVE); + break; + case 'u': /* DECRC -- Restore cursor position (ANSI.SYS) */ + tcursor(CURSOR_LOAD); + break; + case ' ': + switch (csiescseq.mode[1]) { + case 'q': /* DECSCUSR -- Set Cursor Style */ + if (xsetcursor(csiescseq.arg[0])) + goto unknown; + break; + default: + goto unknown; + } + break; + } +} + +void +csidump(void) +{ + int i; + uint c; + + fprintf(stderr, "ESC["); + for (i = 0; i < csiescseq.len; i++) { + c = csiescseq.buf[i] & 0xff; + if (isprint(c)) { + putc(c, stderr); + } else if (c == '\n') { + fprintf(stderr, "(\\n)"); + } else if (c == '\r') { + fprintf(stderr, "(\\r)"); + } else if (c == 0x1b) { + fprintf(stderr, "(\\e)"); + } else { + fprintf(stderr, "(%02x)", c); + } + } + putc('\n', stderr); +} + +void +csireset(void) +{ + memset(&csiescseq, 0, sizeof(csiescseq)); +} + +void +strhandle(void) +{ + char *p = NULL, *dec; + int j, narg, par; + + term.esc &= ~(ESC_STR_END|ESC_STR); + strparse(); + par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0; + + switch (strescseq.type) { + case ']': /* OSC -- Operating System Command */ + switch (par) { + case 0: + if (narg > 1) { + xsettitle(strescseq.args[1]); + xseticontitle(strescseq.args[1]); + } + return; + case 1: + if (narg > 1) + xseticontitle(strescseq.args[1]); + return; + case 2: + if (narg > 1) + xsettitle(strescseq.args[1]); + return; + case 52: + if (narg > 2) { + dec = base64dec(strescseq.args[2]); + if (dec) { + xsetsel(dec); + xclipcopy(); + } else { + fprintf(stderr, "erresc: invalid base64\n"); + } + } + return; + case 4: /* color set */ + case 10: /* foreground set */ + case 11: /* background set */ + case 12: /* cursor color */ + if ((par == 4 && narg < 3) || narg < 2) + break; + p = strescseq.args[((par == 4) ? 2 : 1)]; + /* FALLTHROUGH */ + case 104: /* color reset, here p = NULL */ + if (par == 10) + j = defaultfg; + else if (par == 11) + j = defaultbg; + else if (par == 12) + j = defaultcs; + else + j = (narg > 1) ? atoi(strescseq.args[1]) : -1; + + if (xsetcolorname(j, p)) { + if (par == 104 && narg <= 1) + return; /* color reset without parameter */ + fprintf(stderr, "erresc: invalid color j=%d, p=%s\n", + j, p ? p : "(null)"); + } else { + /* + * TODO if defaultbg color is changed, borders + * are dirty + */ + if (j == defaultbg) + xclearwin(); + redraw(); + } + return; + } + break; + case 'k': /* old title set compatibility */ + xsettitle(strescseq.args[0]); + return; + case 'P': /* DCS -- Device Control String */ + term.mode |= ESC_DCS; + case '_': /* APC -- Application Program Command */ + case '^': /* PM -- Privacy Message */ + return; + } + + fprintf(stderr, "erresc: unknown str "); + strdump(); +} + +void +strparse(void) +{ + int c; + char *p = strescseq.buf; + + strescseq.narg = 0; + strescseq.buf[strescseq.len] = '\0'; + + if (*p == '\0') + return; + + while (strescseq.narg < STR_ARG_SIZ) { + strescseq.args[strescseq.narg++] = p; + while ((c = *p) != ';' && c != '\0') + ++p; + if (c == '\0') + return; + *p++ = '\0'; + } +} + +void +strdump(void) +{ + int i; + uint c; + + fprintf(stderr, "ESC%c", strescseq.type); + for (i = 0; i < strescseq.len; i++) { + c = strescseq.buf[i] & 0xff; + if (c == '\0') { + putc('\n', stderr); + return; + } else if (isprint(c)) { + putc(c, stderr); + } else if (c == '\n') { + fprintf(stderr, "(\\n)"); + } else if (c == '\r') { + fprintf(stderr, "(\\r)"); + } else if (c == 0x1b) { + fprintf(stderr, "(\\e)"); + } else { + fprintf(stderr, "(%02x)", c); + } + } + fprintf(stderr, "ESC\\\n"); +} + +void +strreset(void) +{ + memset(&strescseq, 0, sizeof(strescseq)); +} + +void +sendbreak(const Arg *arg) +{ + if (tcsendbreak(cmdfd, 0)) + perror("Error sending break"); +} + +void +tprinter(char *s, size_t len) +{ + if (iofd != -1 && xwrite(iofd, s, len) < 0) { + perror("Error writing to output file"); + close(iofd); + iofd = -1; + } +} + +void +externalpipe(const Arg *arg) +{ + int to[2]; + char buf[UTF_SIZ]; + void (*oldsigpipe)(int); + Glyph *bp, *end; + int lastpos, n, newline; + + if (pipe(to) == -1) + return; + + switch (fork()) { + case -1: + close(to[0]); + close(to[1]); + return; + case 0: + dup2(to[0], STDIN_FILENO); + close(to[0]); + close(to[1]); + execvp(((char **)arg->v)[0], (char **)arg->v); + fprintf(stderr, "st: execvp %s\n", ((char **)arg->v)[0]); + perror("failed"); + exit(0); + } + + close(to[0]); + /* ignore sigpipe for now, in case child exists early */ + oldsigpipe = signal(SIGPIPE, SIG_IGN); + newline = 0; + /* modify externalpipe patch to pipe history too */ + for (n = 0; n <= HISTSIZE + 2; n++) { + bp = TLINE_HIST(n); + lastpos = MIN(tlinehistlen(n) +1, term.col) - 1; + if (lastpos < 0) + break; + if (lastpos == 0) + continue; + end = &bp[lastpos + 1]; + for (; bp < end; ++bp) + if (xwrite(to[1], buf, utf8encode(bp->u, buf)) < 0) + break; + if ((newline = TLINE_HIST(n)[lastpos].mode & ATTR_WRAP)) + continue; + if (xwrite(to[1], "\n", 1) < 0) + break; + newline = 0; + } + if (newline) + (void)xwrite(to[1], "\n", 1); + close(to[1]); + /* restore */ + signal(SIGPIPE, oldsigpipe); +} + +void +iso14755(const Arg *arg) +{ + FILE *p; + char *us, *e, codepoint[9], uc[UTF_SIZ]; + unsigned long utf32; + + if (!(p = popen(ISO14755CMD, "r"))) + return; + + us = fgets(codepoint, sizeof(codepoint), p); + pclose(p); + + if (!us || *us == '\0' || *us == '-' || strlen(us) > 7) + return; + if ((utf32 = strtoul(us, &e, 16)) == ULONG_MAX || + (*e != '\n' && *e != '\0')) + return; + + ttywrite(uc, utf8encode(utf32, uc), 1); +} + +void +toggleprinter(const Arg *arg) +{ + term.mode ^= MODE_PRINT; +} + +void +printscreen(const Arg *arg) +{ + tdump(); +} + +void +printsel(const Arg *arg) +{ + tdumpsel(); +} + +void +tdumpsel(void) +{ + char *ptr; + + if ((ptr = getsel())) { + tprinter(ptr, strlen(ptr)); + free(ptr); + } +} + +void +tdumpline(int n) +{ + char buf[UTF_SIZ]; + const Glyph *bp, *end; + + bp = &term.line[n][0]; + end = &bp[MIN(tlinelen(n), term.col) - 1]; + if (bp != end || bp->u != ' ') { + for ( ;bp <= end; ++bp) + tprinter(buf, utf8encode(bp->u, buf)); + } + tprinter("\n", 1); +} + +void +tdump(void) +{ + int i; + + for (i = 0; i < term.row; ++i) + tdumpline(i); +} + +void +tputtab(int n) +{ + uint x = term.c.x; + + if (n > 0) { + while (x < term.col && n--) + for (++x; x < term.col && !term.tabs[x]; ++x) + /* nothing */ ; + } else if (n < 0) { + while (x > 0 && n++) + for (--x; x > 0 && !term.tabs[x]; --x) + /* nothing */ ; + } + term.c.x = LIMIT(x, 0, term.col-1); +} + +void +tdefutf8(char ascii) +{ + if (ascii == 'G') + term.mode |= MODE_UTF8; + else if (ascii == '@') + term.mode &= ~MODE_UTF8; +} + +void +tdeftran(char ascii) +{ + static char cs[] = "0B"; + static int vcs[] = {CS_GRAPHIC0, CS_USA}; + char *p; + + if ((p = strchr(cs, ascii)) == NULL) { + fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii); + } else { + term.trantbl[term.icharset] = vcs[p - cs]; + } +} + +void +tdectest(char c) +{ + int x, y; + + if (c == '8') { /* DEC screen alignment test. */ + for (x = 0; x < term.col; ++x) { + for (y = 0; y < term.row; ++y) + tsetchar('E', &term.c.attr, x, y); + } + } +} + +void +tstrsequence(uchar c) +{ + strreset(); + + switch (c) { + case 0x90: /* DCS -- Device Control String */ + c = 'P'; + term.esc |= ESC_DCS; + break; + case 0x9f: /* APC -- Application Program Command */ + c = '_'; + break; + case 0x9e: /* PM -- Privacy Message */ + c = '^'; + break; + case 0x9d: /* OSC -- Operating System Command */ + c = ']'; + break; + } + strescseq.type = c; + term.esc |= ESC_STR; +} + +void +tcontrolcode(uchar ascii) +{ + switch (ascii) { + case '\t': /* HT */ + tputtab(1); + return; + case '\b': /* BS */ + tmoveto(term.c.x-1, term.c.y); + return; + case '\r': /* CR */ + tmoveto(0, term.c.y); + return; + case '\f': /* LF */ + case '\v': /* VT */ + case '\n': /* LF */ + /* go to first col if the mode is set */ + tnewline(IS_SET(MODE_CRLF)); + return; + case '\a': /* BEL */ + if (term.esc & ESC_STR_END) { + /* backwards compatibility to xterm */ + strhandle(); + } else { + xbell(); + } + break; + case '\033': /* ESC */ + csireset(); + term.esc &= ~(ESC_CSI|ESC_ALTCHARSET|ESC_TEST); + term.esc |= ESC_START; + return; + case '\016': /* SO (LS1 -- Locking shift 1) */ + case '\017': /* SI (LS0 -- Locking shift 0) */ + term.charset = 1 - (ascii - '\016'); + return; + case '\032': /* SUB */ + tsetchar('?', &term.c.attr, term.c.x, term.c.y); + case '\030': /* CAN */ + csireset(); + break; + case '\005': /* ENQ (IGNORED) */ + case '\000': /* NUL (IGNORED) */ + case '\021': /* XON (IGNORED) */ + case '\023': /* XOFF (IGNORED) */ + case 0177: /* DEL (IGNORED) */ + return; + case 0x80: /* TODO: PAD */ + case 0x81: /* TODO: HOP */ + case 0x82: /* TODO: BPH */ + case 0x83: /* TODO: NBH */ + case 0x84: /* TODO: IND */ + break; + case 0x85: /* NEL -- Next line */ + tnewline(1); /* always go to first col */ + break; + case 0x86: /* TODO: SSA */ + case 0x87: /* TODO: ESA */ + break; + case 0x88: /* HTS -- Horizontal tab stop */ + term.tabs[term.c.x] = 1; + break; + case 0x89: /* TODO: HTJ */ + case 0x8a: /* TODO: VTS */ + case 0x8b: /* TODO: PLD */ + case 0x8c: /* TODO: PLU */ + case 0x8d: /* TODO: RI */ + case 0x8e: /* TODO: SS2 */ + case 0x8f: /* TODO: SS3 */ + case 0x91: /* TODO: PU1 */ + case 0x92: /* TODO: PU2 */ + case 0x93: /* TODO: STS */ + case 0x94: /* TODO: CCH */ + case 0x95: /* TODO: MW */ + case 0x96: /* TODO: SPA */ + case 0x97: /* TODO: EPA */ + case 0x98: /* TODO: SOS */ + case 0x99: /* TODO: SGCI */ + break; + case 0x9a: /* DECID -- Identify Terminal */ + ttywrite(vtiden, strlen(vtiden), 0); + break; + case 0x9b: /* TODO: CSI */ + case 0x9c: /* TODO: ST */ + break; + case 0x90: /* DCS -- Device Control String */ + case 0x9d: /* OSC -- Operating System Command */ + case 0x9e: /* PM -- Privacy Message */ + case 0x9f: /* APC -- Application Program Command */ + tstrsequence(ascii); + return; + } + /* only CAN, SUB, \a and C1 chars interrupt a sequence */ + term.esc &= ~(ESC_STR_END|ESC_STR); +} + +/* + * returns 1 when the sequence is finished and it hasn't to read + * more characters for this sequence, otherwise 0 + */ +int +eschandle(uchar ascii) +{ + switch (ascii) { + case '[': + term.esc |= ESC_CSI; + return 0; + case '#': + term.esc |= ESC_TEST; + return 0; + case '%': + term.esc |= ESC_UTF8; + return 0; + case 'P': /* DCS -- Device Control String */ + case '_': /* APC -- Application Program Command */ + case '^': /* PM -- Privacy Message */ + case ']': /* OSC -- Operating System Command */ + case 'k': /* old title set compatibility */ + tstrsequence(ascii); + return 0; + case 'n': /* LS2 -- Locking shift 2 */ + case 'o': /* LS3 -- Locking shift 3 */ + term.charset = 2 + (ascii - 'n'); + break; + case '(': /* GZD4 -- set primary charset G0 */ + case ')': /* G1D4 -- set secondary charset G1 */ + case '*': /* G2D4 -- set tertiary charset G2 */ + case '+': /* G3D4 -- set quaternary charset G3 */ + term.icharset = ascii - '('; + term.esc |= ESC_ALTCHARSET; + return 0; + case 'D': /* IND -- Linefeed */ + if (term.c.y == term.bot) { + tscrollup(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y+1); + } + break; + case 'E': /* NEL -- Next line */ + tnewline(1); /* always go to first col */ + break; + case 'H': /* HTS -- Horizontal tab stop */ + term.tabs[term.c.x] = 1; + break; + case 'M': /* RI -- Reverse index */ + if (term.c.y == term.top) { + tscrolldown(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y-1); + } + break; + case 'Z': /* DECID -- Identify Terminal */ + ttywrite(vtiden, strlen(vtiden), 0); + break; + case 'c': /* RIS -- Reset to initial state */ + treset(); + resettitle(); + xloadcols(); + break; + case '=': /* DECPAM -- Application keypad */ + xsetmode(1, MODE_APPKEYPAD); + break; + case '>': /* DECPNM -- Normal keypad */ + xsetmode(0, MODE_APPKEYPAD); + break; + case '7': /* DECSC -- Save Cursor */ + tcursor(CURSOR_SAVE); + break; + case '8': /* DECRC -- Restore Cursor */ + tcursor(CURSOR_LOAD); + break; + case '\\': /* ST -- String Terminator */ + if (term.esc & ESC_STR_END) + strhandle(); + break; + default: + fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", + (uchar) ascii, isprint(ascii)? ascii:'.'); + break; + } + return 1; +} + +void +tputc(Rune u) +{ + char c[UTF_SIZ]; + int control; + int width, len; + Glyph *gp; + + control = ISCONTROL(u); + if (!IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { + c[0] = u; + width = len = 1; + } else { + len = utf8encode(u, c); + if (!control && (width = wcwidth(u)) == -1) { + memcpy(c, "\357\277\275", 4); /* UTF_INVALID */ + width = 1; + } + } + + if (IS_SET(MODE_PRINT)) + tprinter(c, len); + + /* + * STR sequence must be checked before anything else + * because it uses all following characters until it + * receives a ESC, a SUB, a ST or any other C1 control + * character. + */ + if (term.esc & ESC_STR) { + if (u == '\a' || u == 030 || u == 032 || u == 033 || + ISCONTROLC1(u)) { + term.esc &= ~(ESC_START|ESC_STR|ESC_DCS); + if (IS_SET(MODE_SIXEL)) { + /* TODO: render sixel */; + term.mode &= ~MODE_SIXEL; + return; + } + term.esc |= ESC_STR_END; + goto check_control_code; + } + + if (IS_SET(MODE_SIXEL)) { + /* TODO: implement sixel mode */ + return; + } + if (term.esc&ESC_DCS && strescseq.len == 0 && u == 'q') + term.mode |= MODE_SIXEL; + + if (strescseq.len+len >= sizeof(strescseq.buf)-1) { + /* + * Here is a bug in terminals. If the user never sends + * some code to stop the str or esc command, then st + * will stop responding. But this is better than + * silently failing with unknown characters. At least + * then users will report back. + * + * In the case users ever get fixed, here is the code: + */ + /* + * term.esc = 0; + * strhandle(); + */ + return; + } + + memmove(&strescseq.buf[strescseq.len], c, len); + strescseq.len += len; + return; + } + +check_control_code: + /* + * Actions of control codes must be performed as soon they arrive + * because they can be embedded inside a control sequence, and + * they must not cause conflicts with sequences. + */ + if (control) { + tcontrolcode(u); + /* + * control codes are not shown ever + */ + return; + } else if (term.esc & ESC_START) { + if (term.esc & ESC_CSI) { + csiescseq.buf[csiescseq.len++] = u; + if (BETWEEN(u, 0x40, 0x7E) + || csiescseq.len >= \ + sizeof(csiescseq.buf)-1) { + term.esc = 0; + csiparse(); + csihandle(); + } + return; + } else if (term.esc & ESC_UTF8) { + tdefutf8(u); + } else if (term.esc & ESC_ALTCHARSET) { + tdeftran(u); + } else if (term.esc & ESC_TEST) { + tdectest(u); + } else { + if (!eschandle(u)) + return; + /* sequence already finished */ + } + term.esc = 0; + /* + * All characters which form part of a sequence are not + * printed + */ + return; + } + if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y)) + selclear(); + + gp = &term.line[term.c.y][term.c.x]; + if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) { + gp->mode |= ATTR_WRAP; + tnewline(1); + gp = &term.line[term.c.y][term.c.x]; + } + + if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) + memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph)); + + if (term.c.x+width > term.col) { + tnewline(1); + gp = &term.line[term.c.y][term.c.x]; + } + + tsetchar(u, &term.c.attr, term.c.x, term.c.y); + + if (width == 2) { + gp->mode |= ATTR_WIDE; + if (term.c.x+1 < term.col) { + if (gp[1].mode == ATTR_WIDE && term.c.x+2 < term.col) { + gp[2].u = ' '; + gp[2].mode &= ~ATTR_WDUMMY; + } + gp[1].u = '\0'; + gp[1].mode = ATTR_WDUMMY; + } + } + if (term.c.x+width < term.col) { + tmoveto(term.c.x+width, term.c.y); + } else { + term.c.state |= CURSOR_WRAPNEXT; + } +} + +int +twrite(const char *buf, int buflen, int show_ctrl) +{ + int charsize; + Rune u; + int n; + + for (n = 0; n < buflen; n += charsize) { + if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { + /* process a complete utf8 char */ + charsize = utf8decode(buf + n, &u, buflen - n); + if (charsize == 0) + break; + } else { + u = buf[n] & 0xFF; + charsize = 1; + } + if (show_ctrl && ISCONTROL(u)) { + if (u & 0x80) { + u &= 0x7f; + tputc('^'); + tputc('['); + } else if (u != '\n' && u != '\r' && u != '\t') { + u ^= 0x40; + tputc('^'); + } + } + tputc(u); + } + return n; +} + +void +tresize(int col, int row) +{ + int i, j; + int tmp; + int minrow, mincol; + int *bp; + TCursor c; + + tmp = col; + if (!term.maxcol) + term.maxcol = term.col; + col = MAX(col, term.maxcol); + minrow = MIN(row, term.row); + mincol = MIN(col, term.maxcol); + + if (col < 1 || row < 1) { + fprintf(stderr, + "tresize: error resizing to %dx%d\n", col, row); + return; + } + + /* + * slide screen to keep cursor where we expect it - + * tscrollup would work here, but we can optimize to + * memmove because we're freeing the earlier lines + */ + for (i = 0; i <= term.c.y - row; i++) { + free(term.line[i]); + free(term.alt[i]); + } + /* ensure that both src and dst are not NULL */ + if (i > 0) { + memmove(term.line, term.line + i, row * sizeof(Line)); + memmove(term.alt, term.alt + i, row * sizeof(Line)); + } + for (i += row; i < term.row; i++) { + free(term.line[i]); + free(term.alt[i]); + } + + /* resize to new height */ + term.line = xrealloc(term.line, row * sizeof(Line)); + term.alt = xrealloc(term.alt, row * sizeof(Line)); + term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); + term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); + + for (i = 0; i < HISTSIZE; i++) { + term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph)); + for (j = mincol; j < col; j++) { + term.hist[i][j] = term.c.attr; + term.hist[i][j].u = ' '; + } + } + + /* resize each row to new width, zero-pad if needed */ + for (i = 0; i < minrow; i++) { + term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); + term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph)); + } + + /* allocate any new rows */ + for (/* i = minrow */; i < row; i++) { + term.line[i] = xmalloc(col * sizeof(Glyph)); + term.alt[i] = xmalloc(col * sizeof(Glyph)); + } + + if (col > term.maxcol) { + bp = term.tabs + term.maxcol; + memset(bp, 0, sizeof(*term.tabs) * (col - term.maxcol)); + while (--bp > term.tabs && !*bp) + /* nothing */ ; + for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces) + *bp = 1; + } + /* update terminal size */ + term.col = tmp; + term.maxcol = col; + term.row = row; + /* reset scrolling region */ + tsetscroll(0, row-1); + /* make use of the LIMIT in tmoveto */ + tmoveto(term.c.x, term.c.y); + /* Clearing both screens (it makes dirty all lines) */ + c = term.c; + for (i = 0; i < 2; i++) { + if (mincol < col && 0 < minrow) { + tclearregion(mincol, 0, col - 1, minrow - 1); + } + if (0 < col && minrow < row) { + tclearregion(0, minrow, col - 1, row - 1); + } + tswapscreen(); + tcursor(CURSOR_LOAD); + } + term.c = c; +} + +void +resettitle(void) +{ + xsettitle(NULL); +} + +void +drawregion(int x1, int y1, int x2, int y2) +{ + int y; + for (y = y1; y < y2; y++) { + if (!term.dirty[y]) + continue; + + term.dirty[y] = 0; + xdrawline(TLINE(y), x1, y, x2); + } +} + +void +draw(void) +{ + int cx = term.c.x; + + if (!xstartdraw()) + return; + + /* adjust cursor position */ + LIMIT(term.ocx, 0, term.col-1); + LIMIT(term.ocy, 0, term.row-1); + if (term.line[term.ocy][term.ocx].mode & ATTR_WDUMMY) + term.ocx--; + if (term.line[term.c.y][cx].mode & ATTR_WDUMMY) + cx--; + + drawregion(0, 0, term.col, term.row); + if (term.scr == 0) + xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], + term.ocx, term.ocy, term.line[term.ocy][term.ocx], + term.line[term.ocy], term.col); + term.ocx = cx, term.ocy = term.c.y; + xfinishdraw(); + + struct timespec now; + clock_gettime(CLOCK_MONOTONIC, &now); + if (ximspot_update_interval && TIMEDIFF(now, term.last_ximspot_update) > ximspot_update_interval) { + xximspot(term.ocx, term.ocy); + term.last_ximspot_update = now; + } +} + +void +redraw(void) +{ + tfulldirt(); + draw(); +} diff --git a/st.desktop b/st.desktop new file mode 100644 index 0000000..b9f767e --- /dev/null +++ b/st.desktop @@ -0,0 +1,8 @@ +[Desktop Entry] +Type=Application +Name=st +Comment=simple-terminal emulator for X +Icon=st +Exec=st +Categories=System;TerminalEmulator +StartupWMClass=st-256color diff --git a/st.h b/st.h new file mode 100644 index 0000000..349efb5 --- /dev/null +++ b/st.h @@ -0,0 +1,158 @@ +/* See LICENSE for license details. */ + +#include +#include + +#include +#include + +/* macros */ +#define LEN(a) (sizeof(a) / sizeof(a)[0]) +#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b)) +#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d)) +#define DEFAULT(a, b) (a) = (a) ? (a) : (b) +#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) +#define ATTRCMP(a, b) (((a).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) != ((b).mode & (~ATTR_WRAP) & (~ATTR_LIGA)) || \ + (a).fg != (b).fg || \ + (a).bg != (b).bg) +#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \ + (t1.tv_nsec-t2.tv_nsec)/1E6) +#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit))) + +#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b)) +#define IS_TRUECOL(x) (1 << 24 & (x)) + +enum glyph_attribute { + ATTR_NULL = 0, + ATTR_BOLD = 1 << 0, + ATTR_FAINT = 1 << 1, + ATTR_ITALIC = 1 << 2, + ATTR_UNDERLINE = 1 << 3, + ATTR_BLINK = 1 << 4, + ATTR_REVERSE = 1 << 5, + ATTR_INVISIBLE = 1 << 6, + ATTR_STRUCK = 1 << 7, + ATTR_WRAP = 1 << 8, + ATTR_WIDE = 1 << 9, + ATTR_WDUMMY = 1 << 10, + ATTR_BOXDRAW = 1 << 11, + ATTR_LIGA = 1 << 12, + ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT, +}; + +enum drawing_mode { + DRAW_NONE = 0, + DRAW_BG = 1 << 0, + DRAW_FG = 1 << 1, +}; + +enum selection_mode { + SEL_IDLE = 0, + SEL_EMPTY = 1, + SEL_READY = 2 +}; + +enum selection_type { + SEL_REGULAR = 1, + SEL_RECTANGULAR = 2 +}; + +enum selection_snap { + SNAP_WORD = 1, + SNAP_LINE = 2 +}; + +typedef unsigned char uchar; +typedef unsigned int uint; +typedef unsigned long ulong; +typedef unsigned short ushort; + +typedef uint_least32_t Rune; + +#define Glyph Glyph_ +typedef struct { + Rune u; /* character code */ + ushort mode; /* attribute flags */ + uint32_t fg; /* foreground */ + uint32_t bg; /* background */ +} Glyph; + +typedef Glyph *Line; + +typedef union { + int i; + uint ui; + float f; + const void *v; +} Arg; + +typedef struct { + uint b; + uint mask; + void (*func)(const Arg *); + const Arg arg; +} MouseKey; + +void die(const char *, ...); +void redraw(void); +void draw(void); + +void externalpipe(const Arg *); +void iso14755(const Arg *); +void kscrolldown(const Arg *); +void kscrollup(const Arg *); +void newterm(const Arg *); +void printscreen(const Arg *); +void printsel(const Arg *); +void sendbreak(const Arg *); +void toggleprinter(const Arg *); + +int tattrset(int); +int tisaltscr(void); +void tnew(int, int); +void tresize(int, int); +void tsetdirtattr(int); +void ttyhangup(void); +int ttynew(const char *, char *, const char *, char **); +size_t ttyread(void); +void ttyresize(int, int); +void ttywrite(const char *, size_t, int); + +void resettitle(void); + +void selclear(void); +void selinit(void); +void selstart(int, int, int); +void selextend(int, int, int, int); +int selected(int, int); +char *getsel(void); + +size_t utf8encode(Rune, char *); + +void *xmalloc(size_t); +void *xrealloc(void *, size_t); +char *xstrdup(const char *); + +int isboxdraw(Rune); +ushort boxdrawindex(const Glyph *); +#ifdef XFT_VERSION +/* only exposed to x.c, otherwise we'll need Xft.h for the types */ +void boxdraw_xinit(Display *, Colormap, XftDraw *, Visual *); +void drawboxes(int, int, int, int, XftColor *, XftColor *, const XftGlyphFontSpec *, int); +#endif + +/* config.h globals */ +extern char *utmp; +extern char *stty_args; +extern char *vtiden; +extern wchar_t *worddelimiters; +extern int allowaltscreen; +extern char *termname; +extern unsigned int tabspaces; +extern unsigned int defaultfg; +extern unsigned int defaultbg; +extern unsigned int defaultcs; +extern const int boxdraw, boxdraw_bold, boxdraw_braille; +extern float alpha; +extern MouseKey mkeys[]; +extern int ximspot_update_interval; diff --git a/st.info b/st.info new file mode 100644 index 0000000..78ffd30 --- /dev/null +++ b/st.info @@ -0,0 +1,222 @@ +st| simpleterm, + acsc=+C\,D-A.B0E``aaffgghFiGjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~, + am, + bce, + bel=^G, + blink=\E[5m, + bold=\E[1m, + cbt=\E[Z, + cvvis=\E[?25h, + civis=\E[?25l, + clear=\E[H\E[2J, + cnorm=\E[?12l\E[?25h, + colors#8, + cols#80, + cr=^M, + csr=\E[%i%p1%d;%p2%dr, + cub=\E[%p1%dD, + cub1=^H, + cud1=^J, + cud=\E[%p1%dB, + cuf1=\E[C, + cuf=\E[%p1%dC, + cup=\E[%i%p1%d;%p2%dH, + cuu1=\E[A, + cuu=\E[%p1%dA, + dch=\E[%p1%dP, + dch1=\E[P, + dim=\E[2m, + dl=\E[%p1%dM, + dl1=\E[M, + ech=\E[%p1%dX, + ed=\E[J, + el=\E[K, + el1=\E[1K, + enacs=\E)0, + flash=\E[?5h$<80/>\E[?5l, + fsl=^G, + home=\E[H, + hpa=\E[%i%p1%dG, + hs, + ht=^I, + hts=\EH, + ich=\E[%p1%d@, + il1=\E[L, + il=\E[%p1%dL, + ind=^J, + indn=\E[%p1%dS, + invis=\E[8m, + is2=\E[4l\E>\E[?1034l, + it#8, + kel=\E[1;2F, + ked=\E[1;5F, + ka1=\E[1~, + ka3=\E[5~, + kc1=\E[4~, + kc3=\E[6~, + kbs=\177, + kcbt=\E[Z, + kb2=\EOu, + kcub1=\EOD, + kcud1=\EOB, + kcuf1=\EOC, + kcuu1=\EOA, + kDC=\E[3;2~, + kent=\EOM, + kEND=\E[1;2F, + kIC=\E[2;2~, + kNXT=\E[6;2~, + kPRV=\E[5;2~, + kHOM=\E[1;2H, + kLFT=\E[1;2D, + kRIT=\E[1;2C, + kind=\E[1;2B, + kri=\E[1;2A, + kclr=\E[3;5~, + kdl1=\E[3;2~, + kdch1=\E[3~, + kich1=\E[2~, + kend=\E[4~, + kf1=\EOP, + kf2=\EOQ, + kf3=\EOR, + kf4=\EOS, + kf5=\E[15~, + kf6=\E[17~, + kf7=\E[18~, + kf8=\E[19~, + kf9=\E[20~, + kf10=\E[21~, + kf11=\E[23~, + kf12=\E[24~, + kf13=\E[1;2P, + kf14=\E[1;2Q, + kf15=\E[1;2R, + kf16=\E[1;2S, + kf17=\E[15;2~, + kf18=\E[17;2~, + kf19=\E[18;2~, + kf20=\E[19;2~, + kf21=\E[20;2~, + kf22=\E[21;2~, + kf23=\E[23;2~, + kf24=\E[24;2~, + kf25=\E[1;5P, + kf26=\E[1;5Q, + kf27=\E[1;5R, + kf28=\E[1;5S, + kf29=\E[15;5~, + kf30=\E[17;5~, + kf31=\E[18;5~, + kf32=\E[19;5~, + kf33=\E[20;5~, + kf34=\E[21;5~, + kf35=\E[23;5~, + kf36=\E[24;5~, + kf37=\E[1;6P, + kf38=\E[1;6Q, + kf39=\E[1;6R, + kf40=\E[1;6S, + kf41=\E[15;6~, + kf42=\E[17;6~, + kf43=\E[18;6~, + kf44=\E[19;6~, + kf45=\E[20;6~, + kf46=\E[21;6~, + kf47=\E[23;6~, + kf48=\E[24;6~, + kf49=\E[1;3P, + kf50=\E[1;3Q, + kf51=\E[1;3R, + kf52=\E[1;3S, + kf53=\E[15;3~, + kf54=\E[17;3~, + kf55=\E[18;3~, + kf56=\E[19;3~, + kf57=\E[20;3~, + kf58=\E[21;3~, + kf59=\E[23;3~, + kf60=\E[24;3~, + kf61=\E[1;4P, + kf62=\E[1;4Q, + kf63=\E[1;4R, + khome=\E[1~, + kil1=\E[2;5~, + krmir=\E[2;2~, + knp=\E[6~, + kmous=\E[M, + kpp=\E[5~, + lines#24, + mir, + msgr, + npc, + op=\E[39;49m, + pairs#64, + mc0=\E[i, + mc4=\E[4i, + mc5=\E[5i, + rc=\E8, + rev=\E[7m, + ri=\EM, + ritm=\E[23m, + rmacs=\E(B, + rmcup=\E[?1049l, + rmir=\E[4l, + rmkx=\E[?1l\E>, + rmso=\E[27m, + rmul=\E[24m, + rs1=\Ec, + rs2=\E[4l\E>\E[?1034l, + sc=\E7, + setab=\E[4%p1%dm, + setaf=\E[3%p1%dm, + setb=\E[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m, + setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m, + sgr0=\E[0m, + sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m, + sitm=\E[3m, + smacs=\E(0, + smcup=\E[?1049h, + smir=\E[4h, + smkx=\E[?1h\E=, + smso=\E[7m, + smul=\E[4m, + tbc=\E[3g, + tsl=\E]0;, + xenl, + vpa=\E[%i%p1%dd, +# XTerm extensions + rmxx=\E[29m, + smxx=\E[9m, +# tmux extensions, see TERMINFO EXTENSIONS in tmux(1) + Tc, + Ms=\E]52;%p1%s;%p2%s\007, + Se=\E[2 q, + Ss=\E[%p1%d q, + +st-256color| simpleterm with 256 colors, + use=st, + ccc, + colors#256, + oc=\E]104\007, + pairs#32767, +# Nicked from xterm-256color + initc=\E]4;%p1%d;rgb\:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\E\\, + setab=\E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m, + setaf=\E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m, + +st-meta| simpleterm with meta key, + use=st, + km, + rmm=\E[?1034l, + smm=\E[?1034h, + rs2=\E[4l\E>\E[?1034h, + is2=\E[4l\E>\E[?1034h, + +st-meta-256color| simpleterm with meta key and 256 colors, + use=st-256color, + km, + rmm=\E[?1034l, + smm=\E[?1034h, + rs2=\E[4l\E>\E[?1034h, + is2=\E[4l\E>\E[?1034h, diff --git a/st.png b/st.png new file mode 100644 index 0000000000000000000000000000000000000000..806c142a094805f0cac1e3b587b7baf8ab2726bd GIT binary patch literal 836 zcmeAS@N?(olHy`uVBq!ia0vp^4j|0I3?%1nZ+yeRz!(lk!<6~oE6A}_)Vq)CDz}?*)CgxLX`lhC)mX?uI}#co}Qk*zPT;{`~?dZELyZ^`SRr} zR;*aNcJ2E0>o;uJuyg0m{rmSHI&|ph(WA$X9XoO2#QF2*uU@@+=gys{PoF+}_Uy%r z7cXDFeD&(p>({T}zJ2@t{ris}KYsf3>Fd|8-@kwV`Sa(mU%!6;{{83Apa1{=hu!bG z0}MpDk|4ie238qaIe9&OV-s^nr^QQ`E?>8PEaj?aro`^u(xt8F%$J+*%FFTM05DRX2?qxLVXk2<2J%=X)4;q89LkL5-Q zEX_to7zEimcn%y0VQxI#Z@iH$;nOsMBGCqBbC;8)3_Kzs4R?GU8(Vx@e=7)lSXUeL zP?6Zud4BQ)SMCUCA(ide!KY1H4{C;K>qOs-xgNQYSHv2N(RpSnoAB z{4m)1Kj_`_v_yv|9+NIr`>P0xI2@=6(o)}B+rV-`Oe|>9tk`?(Rs2brx9&eupK`og z=;HE{JQf|f%m37Zen+THo!Hx;@;1NbyWz?{!42!a3BO3sk#gt~_`acVOs!Gdinit+s->elSize*amount-s->alloc, nas=s->alloc+max(diff,15)*s->elSize; + if (s->alloc < s->init + s->elSize * amount) { + char* tmp = realloc(s->content, nas); + if (!tmp) return 0; + s->alloc = nas, s->content = tmp; + } + return 1; +} +static inline char *view(DynamicArray * s, uint32_t i) { return s->content + i*s->elSize; } +static inline char *end(DynamicArray *s, uint32_t i) { return s->content +s->init-(i+1)*s->elSize; } +static inline uint32_t getU32(DynamicArray* s, uint32_t i, int b) { return *((uint32_t*) (b ?view(s,i) :end(s,i))); } +static char *expand(DynamicArray *s) { if (!p_alloc(s, 1)) return NULL; s->init += s->elSize; return end(s, 0); } +static inline void pop(DynamicArray* s) { s->init -= s->elSize; } +static inline void empty(DynamicArray* s) { s->init = 0; } +static inline int size(DynamicArray const * s) { return s->init / s->elSize; } +static inline void assign(DynamicArray* s, DynamicArray const *o) { + if (p_alloc(s, size(o))) memcpy(s->content, o->content, (s->init=o->init)); +} diff --git a/win.h b/win.h new file mode 100644 index 0000000..b9532a9 --- /dev/null +++ b/win.h @@ -0,0 +1,41 @@ +/* See LICENSE for license details. */ + +enum win_mode { + MODE_VISIBLE = 1 << 0, + MODE_FOCUSED = 1 << 1, + MODE_APPKEYPAD = 1 << 2, + MODE_MOUSEBTN = 1 << 3, + MODE_MOUSEMOTION = 1 << 4, + MODE_REVERSE = 1 << 5, + MODE_KBDLOCK = 1 << 6, + MODE_HIDE = 1 << 7, + MODE_APPCURSOR = 1 << 8, + MODE_MOUSESGR = 1 << 9, + MODE_8BIT = 1 << 10, + MODE_BLINK = 1 << 11, + MODE_FBLINK = 1 << 12, + MODE_FOCUS = 1 << 13, + MODE_MOUSEX10 = 1 << 14, + MODE_MOUSEMANY = 1 << 15, + MODE_BRCKTPASTE = 1 << 16, + MODE_NUMLOCK = 1 << 17, + MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\ + |MODE_MOUSEMANY, +}; + +void xbell(void); +void xclipcopy(void); +void xdrawcursor(int, int, Glyph, int, int, Glyph, Line, int); +void xdrawline(Line, int, int, int); +void xfinishdraw(void); +void xloadcols(void); +int xsetcolorname(int, const char *); +void xseticontitle(char *); +void xsettitle(char *); +int xsetcursor(int); +void xsetmode(int, unsigned int); +void xsetpointermotion(int); +void xsetsel(char *); +int xstartdraw(void); +void xximspot(int, int); +void xclearwin(void); diff --git a/x.c b/x.c new file mode 100644 index 0000000..ad1339f --- /dev/null +++ b/x.c @@ -0,0 +1,2432 @@ +/* See LICENSE for license details. */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static char *argv0; +#include "arg.h" +#include "st.h" +#include "win.h" +#include "hb.h" + +/* types used in config.h */ +typedef struct { + uint mod; + KeySym keysym; + void (*func)(const Arg *); + const Arg arg; +} Shortcut; + +typedef struct { + uint b; + uint mask; + char *s; +} MouseShortcut; + +typedef struct { + KeySym k; + uint mask; + char *s; + /* three-valued logic variables: 0 indifferent, 1 on, -1 off */ + signed char appkey; /* application keypad */ + signed char appcursor; /* application cursor */ +} Key; + +/* Xresources preferences */ +enum resource_type { + STRING = 0, + INTEGER = 1, + FLOAT = 2 +}; + +typedef struct { + char *name; + enum resource_type type; + void *dst; +} ResourcePref; + +/* X modifiers */ +#define XK_ANY_MOD UINT_MAX +#define XK_NO_MOD 0 +#define XK_SWITCH_MOD (1<<13|1<<14) + +/* function definitions used in config.h */ +static void clipcopy(const Arg *); +static void clippaste(const Arg *); +static void numlock(const Arg *); +static void selpaste(const Arg *); +static void changealpha(const Arg *); +static void zoom(const Arg *); +static void zoomabs(const Arg *); +static void zoomreset(const Arg *); + +/* config.h for applying patches and the configuration. */ +#include "config.h" + +/* XEMBED messages */ +#define XEMBED_FOCUS_IN 4 +#define XEMBED_FOCUS_OUT 5 + +/* macros */ +#define IS_SET(flag) ((win.mode & (flag)) != 0) +#define TRUERED(x) (((x) & 0xff0000) >> 8) +#define TRUEGREEN(x) (((x) & 0xff00)) +#define TRUEBLUE(x) (((x) & 0xff) << 8) + +typedef XftDraw *Draw; +typedef XftColor Color; +typedef XftGlyphFontSpec GlyphFontSpec; + +typedef unsigned long int CARD32; + +/* Purely graphic info */ +typedef struct { + int tw, th; /* tty width and height */ + int w, h; /* window width and height */ + int hborderpx, vborderpx; + int ch; /* char height */ + int cw; /* char width */ + int cyo; /* char y offset */ + int mode; /* window state/mode flags */ + int cursor; /* cursor style */ +} TermWindow; + +typedef struct { + Display *dpy; + Colormap cmap; + Window win; + Drawable buf; + GlyphFontSpec *specbuf; /* font spec buffer used for rendering */ + Atom xembed, wmdeletewin, netwmname, netwmicon, netwmiconname, netwmpid; + XIM xim; + XIC xic; + Draw draw; + Visual *vis; + XSetWindowAttributes attrs; + int scr; + int isfixed; /* is fixed geometry? */ + int depth; /* bit depth */ + int l, t; /* left and top offset */ + int gm; /* geometry mask */ +} XWindow; + +typedef struct { + Atom xtarget; + char *primary, *clipboard; + struct timespec tclick1; + struct timespec tclick2; +} XSelection; + +/* Font structure */ +#define Font Font_ +typedef struct { + int height; + int width; + int ascent; + int descent; + int badslant; + int badweight; + short lbearing; + short rbearing; + XftFont *match; + FcFontSet *set; + FcPattern *pattern; +} Font; + +/* Drawing Context */ +typedef struct { + Color *col; + size_t collen; + Font font, bfont, ifont, ibfont; + GC gc; +} DC; + +static inline ushort sixd_to_16bit(int); +static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int); +static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int, int); +static void xdrawglyph(Glyph, int, int); +static void xclear(int, int, int, int); +static int xgeommasktogravity(int); +static void ximopen(Display *); +static void ximinstantiate(Display *, XPointer, XPointer); +static void ximdestroy(XIM, XPointer, XPointer); +static void xinit(int, int); +static void cresize(int, int); +static void xresize(int, int); +static void xhints(void); +static int xloadcolor(int, const char *, Color *); +static int xloadfont(Font *, FcPattern *); +static void xloadfonts(const char *, double); +static int xloadsparefont(FcPattern *, int); +static void xloadsparefonts(void); +static void xunloadfont(Font *); +static void xunloadfonts(void); +static void xsetenv(void); +static void xseturgency(int); +static int evcol(XEvent *); +static int evrow(XEvent *); + +static void expose(XEvent *); +static void visibility(XEvent *); +static void unmap(XEvent *); +static void kpress(XEvent *); +static void cmessage(XEvent *); +static void resize(XEvent *); +static void focus(XEvent *); +static void brelease(XEvent *); +static void bpress(XEvent *); +static void bmotion(XEvent *); +static void propnotify(XEvent *); +static void selnotify(XEvent *); +static void selclear_(XEvent *); +static void selrequest(XEvent *); +static void setsel(char *, Time); +static void mousesel(XEvent *, int); +static void mousereport(XEvent *); +static char *kmap(KeySym, uint); +static int match(uint, uint); + +static void run(void); +static void usage(void); + +static void (*handler[LASTEvent])(XEvent *) = { + [KeyPress] = kpress, + [ClientMessage] = cmessage, + [ConfigureNotify] = resize, + [VisibilityNotify] = visibility, + [UnmapNotify] = unmap, + [Expose] = expose, + [FocusIn] = focus, + [FocusOut] = focus, + [MotionNotify] = bmotion, + [ButtonPress] = bpress, + [ButtonRelease] = brelease, +/* + * Uncomment if you want the selection to disappear when you select something + * different in another window. + */ +/* [SelectionClear] = selclear_, */ + [SelectionNotify] = selnotify, +/* + * PropertyNotify is only turned on when there is some INCR transfer happening + * for the selection retrieval. + */ + [PropertyNotify] = propnotify, + [SelectionRequest] = selrequest, +}; + +/* Globals */ +static DC dc; +static XWindow xw; +static XSelection xsel; +static TermWindow win; + +/* Font Ring Cache */ +enum { + FRC_NORMAL, + FRC_ITALIC, + FRC_BOLD, + FRC_ITALICBOLD +}; + +typedef struct { + XftFont *font; + int flags; + Rune unicodep; +} Fontcache; + +/* Fontcache is an array now. A new font will be appended to the array. */ +static Fontcache *frc = NULL; +static int frclen = 0; +static int frccap = 0; +static char *usedfont = NULL; +static double usedfontsize = 0; +static double defaultfontsize = 0; + +static char *opt_alpha = NULL; +static char *opt_class = NULL; +static char **opt_cmd = NULL; +static char *opt_embed = NULL; +static char *opt_font = NULL; +static char *opt_io = NULL; +static char *opt_line = NULL; +static char *opt_name = NULL; +static char *opt_title = NULL; + +static int oldbutton = 3; /* button event on startup: 3 = release */ +static int cursorblinks = 0; + +void +clipcopy(const Arg *dummy) +{ + Atom clipboard; + + free(xsel.clipboard); + xsel.clipboard = NULL; + + if (xsel.primary != NULL) { + xsel.clipboard = xstrdup(xsel.primary); + clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime); + } +} + +void +clippaste(const Arg *dummy) +{ + Atom clipboard; + + clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard, + xw.win, CurrentTime); +} + +void +selpaste(const Arg *dummy) +{ + XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY, + xw.win, CurrentTime); +} + +void +numlock(const Arg *dummy) +{ + win.mode ^= MODE_NUMLOCK; +} + +void +changealpha(const Arg *arg) +{ + if(alpha > 1 && arg->f == 2 ) + alpha = 1; + if((alpha > 0 && arg->f < 0) || (alpha < 1 && arg->f > 0)) + alpha += arg->f; + if(alpha < 0) + alpha = 0; + if(alpha > 1) + alpha = 1; + + xloadcols(); + redraw(); +} + +void +zoom(const Arg *arg) +{ + Arg larg; + + larg.f = usedfontsize + arg->f; + zoomabs(&larg); +} + +void +zoomabs(const Arg *arg) +{ + xunloadfonts(); + xloadfonts(usedfont, arg->f); + xloadsparefonts(); + cresize(0, 0); + redraw(); + xhints(); +} + +void +zoomreset(const Arg *arg) +{ + Arg larg; + + if (defaultfontsize > 0) { + larg.f = defaultfontsize; + zoomabs(&larg); + } +} + +int +evcol(XEvent *e) +{ + int x = e->xbutton.x - borderpx; + LIMIT(x, 0, win.tw - 1); + return x / win.cw; +} + +int +evrow(XEvent *e) +{ + int y = e->xbutton.y - borderpx; + LIMIT(y, 0, win.th - 1); + return y / win.ch; +} + +void +mousesel(XEvent *e, int done) +{ + int type, seltype = SEL_REGULAR; + uint state = e->xbutton.state & ~(Button1Mask | forceselmod); + + for (type = 1; type < LEN(selmasks); ++type) { + if (match(selmasks[type], state)) { + seltype = type; + break; + } + } + selextend(evcol(e), evrow(e), seltype, done); + if (done) + setsel(getsel(), e->xbutton.time); +} + +void +mousereport(XEvent *e) +{ + int len, x = evcol(e), y = evrow(e), + button = e->xbutton.button, state = e->xbutton.state; + char buf[40]; + static int ox, oy; + + /* from urxvt */ + if (e->xbutton.type == MotionNotify) { + if (x == ox && y == oy) + return; + if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) + return; + /* MOUSE_MOTION: no reporting if no button is pressed */ + if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) + return; + + button = oldbutton + 32; + ox = x; + oy = y; + } else { + if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) { + button = 3; + } else { + button -= Button1; + if (button >= 3) + if (button >= 7) + button += 128 - 7; + else if (button >= 3) + button += 64 - 3; + } + if (e->xbutton.type == ButtonPress) { + oldbutton = button; + ox = x; + oy = y; + } else if (e->xbutton.type == ButtonRelease) { + oldbutton = 3; + /* MODE_MOUSEX10: no button release reporting */ + if (IS_SET(MODE_MOUSEX10)) + return; + if (button == 64 || button == 65) + return; + } + } + + if (!IS_SET(MODE_MOUSEX10)) { + button += ((state & ShiftMask ) ? 4 : 0) + + ((state & Mod4Mask ) ? 8 : 0) + + ((state & ControlMask) ? 16 : 0); + } + + if (IS_SET(MODE_MOUSESGR)) { + len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", + button, x+1, y+1, + e->xbutton.type == ButtonRelease ? 'm' : 'M'); + } else if (x < 223 && y < 223) { + len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", + 32+button, 32+x+1, 32+y+1); + } else { + return; + } + + ttywrite(buf, len, 0); +} + +void +bpress(XEvent *e) +{ + struct timespec now; + MouseShortcut *ms; + MouseKey *mk; + int snap; + + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + mousereport(e); + return; + } + + if (tisaltscr()) { + for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { + if (e->xbutton.button == ms->b + && match(ms->mask, e->xbutton.state)) { + ttywrite(ms->s, strlen(ms->s), 1); + return; + } + } + } + + for (mk = mkeys; mk < mkeys + LEN(mkeys); mk++) { + if (e->xbutton.button == mk->b + && match(mk->mask, e->xbutton.state)) { + mk->func(&mk->arg); + return; + } + } + + if (e->xbutton.button == Button1) { + /* + * If the user clicks below predefined timeouts specific + * snapping behaviour is exposed. + */ + clock_gettime(CLOCK_MONOTONIC, &now); + if (TIMEDIFF(now, xsel.tclick2) <= tripleclicktimeout) { + snap = SNAP_LINE; + } else if (TIMEDIFF(now, xsel.tclick1) <= doubleclicktimeout) { + snap = SNAP_WORD; + } else { + snap = 0; + } + xsel.tclick2 = xsel.tclick1; + xsel.tclick1 = now; + + selstart(evcol(e), evrow(e), snap); + } +} + +void +propnotify(XEvent *e) +{ + XPropertyEvent *xpev; + Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + + xpev = &e->xproperty; + if (xpev->state == PropertyNewValue && + (xpev->atom == XA_PRIMARY || + xpev->atom == clipboard)) { + selnotify(e); + } +} + +void +selnotify(XEvent *e) +{ + ulong nitems, ofs, rem; + int format; + uchar *data, *last, *repl; + Atom type, incratom, property = None; + + incratom = XInternAtom(xw.dpy, "INCR", 0); + + ofs = 0; + if (e->type == SelectionNotify) + property = e->xselection.property; + else if (e->type == PropertyNotify) + property = e->xproperty.atom; + + if (property == None) + return; + + do { + if (XGetWindowProperty(xw.dpy, xw.win, property, ofs, + BUFSIZ/4, False, AnyPropertyType, + &type, &format, &nitems, &rem, + &data)) { + fprintf(stderr, "Clipboard allocation failed\n"); + return; + } + + if (e->type == PropertyNotify && nitems == 0 && rem == 0) { + /* + * If there is some PropertyNotify with no data, then + * this is the signal of the selection owner that all + * data has been transferred. We won't need to receive + * PropertyNotify events anymore. + */ + MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, + &xw.attrs); + } + + if (type == incratom) { + /* + * Activate the PropertyNotify events so we receive + * when the selection owner does send us the next + * chunk of data. + */ + MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, + &xw.attrs); + + /* + * Deleting the property is the transfer start signal. + */ + XDeleteProperty(xw.dpy, xw.win, (int)property); + continue; + } + + /* + * As seen in getsel: + * Line endings are inconsistent in the terminal and GUI world + * copy and pasting. When receiving some selection data, + * replace all '\n' with '\r'. + * FIXME: Fix the computer world. + */ + repl = data; + last = data + nitems * format / 8; + while ((repl = memchr(repl, '\n', last - repl))) { + *repl++ = '\r'; + } + + if (IS_SET(MODE_BRCKTPASTE) && ofs == 0) + ttywrite("\033[200~", 6, 0); + ttywrite((char *)data, nitems * format / 8, 1); + if (IS_SET(MODE_BRCKTPASTE) && rem == 0) + ttywrite("\033[201~", 6, 0); + XFree(data); + /* number of 32-bit chunks returned */ + ofs += nitems * format / 32; + } while (rem > 0); + + /* + * Deleting the property again tells the selection owner to send the + * next data chunk in the property. + */ + XDeleteProperty(xw.dpy, xw.win, (int)property); +} + +void +xclipcopy(void) +{ + clipcopy(NULL); +} + +void +selclear_(XEvent *e) +{ + selclear(); +} + +void +selrequest(XEvent *e) +{ + XSelectionRequestEvent *xsre; + XSelectionEvent xev; + Atom xa_targets, string, clipboard; + char *seltext; + + xsre = (XSelectionRequestEvent *) e; + xev.type = SelectionNotify; + xev.requestor = xsre->requestor; + xev.selection = xsre->selection; + xev.target = xsre->target; + xev.time = xsre->time; + if (xsre->property == None) + xsre->property = xsre->target; + + /* reject */ + xev.property = None; + + xa_targets = XInternAtom(xw.dpy, "TARGETS", 0); + if (xsre->target == xa_targets) { + /* respond with the supported type */ + string = xsel.xtarget; + XChangeProperty(xsre->display, xsre->requestor, xsre->property, + XA_ATOM, 32, PropModeReplace, + (uchar *) &string, 1); + xev.property = xsre->property; + } else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) { + /* + * xith XA_STRING non ascii characters may be incorrect in the + * requestor. It is not our problem, use utf8. + */ + clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + if (xsre->selection == XA_PRIMARY) { + seltext = xsel.primary; + } else if (xsre->selection == clipboard) { + seltext = xsel.clipboard; + } else { + fprintf(stderr, + "Unhandled clipboard selection 0x%lx\n", + xsre->selection); + return; + } + if (seltext != NULL) { + XChangeProperty(xsre->display, xsre->requestor, + xsre->property, xsre->target, + 8, PropModeReplace, + (uchar *)seltext, strlen(seltext)); + xev.property = xsre->property; + } + } + + /* all done, send a notification to the listener */ + if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev)) + fprintf(stderr, "Error sending SelectionNotify event\n"); +} + +void +setsel(char *str, Time t) +{ + if (!str) + return; + + free(xsel.primary); + xsel.primary = str; + + XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t); + if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win) + selclear(); +} + +void +xsetsel(char *str) +{ + setsel(str, CurrentTime); +} + +void +brelease(XEvent *e) +{ + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + mousereport(e); + return; + } + if (e->xbutton.button == Button3) + selpaste(NULL); + else if (e->xbutton.button == Button1) + mousesel(e, 1); +} + +void +bmotion(XEvent *e) +{ + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + mousereport(e); + return; + } + + mousesel(e, 0); +} + +void +cresize(int width, int height) +{ + int col, row; + + if (width != 0) + win.w = width; + if (height != 0) + win.h = height; + + col = (win.w - 2 * borderpx) / win.cw; + row = (win.h - 2 * borderpx) / win.ch; + col = MAX(1, col); + row = MAX(1, row); + + tresize(col, row); + xresize(col, row); + ttyresize(win.tw, win.th); +} + +void +xresize(int col, int row) +{ + win.tw = col * win.cw; + win.th = row * win.ch; + + XFreePixmap(xw.dpy, xw.buf); + xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, + xw.depth); + XftDrawChange(xw.draw, xw.buf); + xclear(0, 0, win.w, win.h); + + /* resize to new width */ + xw.specbuf = xrealloc(xw.specbuf, col * sizeof(GlyphFontSpec)); +} + +ushort +sixd_to_16bit(int x) +{ + return x == 0 ? 0 : 0x3737 + 0x2828 * x; +} + +int +xloadcolor(int i, const char *name, Color *ncolor) +{ + XRenderColor color = { .alpha = 0xffff }; + + if (!name) { + if (BETWEEN(i, 16, 255)) { /* 256 color */ + if (i < 6*6*6+16) { /* same colors as xterm */ + color.red = sixd_to_16bit( ((i-16)/36)%6 ); + color.green = sixd_to_16bit( ((i-16)/6) %6 ); + color.blue = sixd_to_16bit( ((i-16)/1) %6 ); + } else { /* greyscale */ + color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16)); + color.green = color.blue = color.red; + } + return XftColorAllocValue(xw.dpy, xw.vis, + xw.cmap, &color, ncolor); + } else + name = colorname[i]; + } + + return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor); +} + +void +xloadcols(void) +{ + int i; + static int loaded; + Color *cp; + + if (loaded) { + for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp) + XftColorFree(xw.dpy, xw.vis, xw.cmap, cp); + } else { + dc.collen = MAX(LEN(colorname), 256); + dc.col = xmalloc(dc.collen * sizeof(Color)); + } + + for (i = 0; i < dc.collen; i++) + if (!xloadcolor(i, NULL, &dc.col[i])) { + if (colorname[i]) + die("could not allocate color '%s'\n", colorname[i]); + else + die("could not allocate color %d\n", i); + } + + /* set alpha value of bg color */ + if (opt_alpha) + alpha = strtof(opt_alpha, NULL); + dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha); + dc.col[defaultbg].color.red = + ((unsigned short)(dc.col[defaultbg].color.red * alpha)) & 0xff00; + dc.col[defaultbg].color.green = + ((unsigned short)(dc.col[defaultbg].color.green * alpha)) & 0xff00; + dc.col[defaultbg].color.blue = + ((unsigned short)(dc.col[defaultbg].color.blue * alpha)) & 0xff00; + dc.col[defaultbg].pixel &= 0x00FFFFFF; + dc.col[defaultbg].pixel |= (unsigned char)(0xff * alpha) << 24; + loaded = 1; +} + +int +xsetcolorname(int x, const char *name) +{ + Color ncolor; + + if (!BETWEEN(x, 0, dc.collen)) + return 1; + + if (!xloadcolor(x, name, &ncolor)) + return 1; + + XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]); + dc.col[x] = ncolor; + if (x == defaultbg) + dc.col[defaultbg].color.alpha = (unsigned short)(0xffff * alpha); + + return 0; +} + +/* + * Absolute coordinates. + */ +void +xclear(int x1, int y1, int x2, int y2) +{ + XftDrawRect(xw.draw, + &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg], + x1, y1, x2-x1, y2-y1); +} + +void +xclearwin(void) +{ + xclear(0, 0, win.w, win.h); +} + + +void +xhints(void) +{ + XClassHint class = {opt_name ? opt_name : "st", + opt_class ? opt_class : "St"}; + XWMHints wm = {.flags = InputHint, .input = 1}; + XSizeHints *sizeh; + + sizeh = XAllocSizeHints(); + + sizeh->flags = PSize | PResizeInc | PBaseSize | PMinSize; + sizeh->height = win.h; + sizeh->width = win.w; + sizeh->height_inc = 1; + sizeh->width_inc = 1; + sizeh->base_height = 2 * borderpx; + sizeh->base_width = 2 * borderpx; + sizeh->min_height = win.ch + 2 * borderpx; + sizeh->min_width = win.cw + 2 * borderpx; + if (xw.isfixed) { + sizeh->flags |= PMaxSize; + sizeh->min_width = sizeh->max_width = win.w; + sizeh->min_height = sizeh->max_height = win.h; + } + if (xw.gm & (XValue|YValue)) { + sizeh->flags |= USPosition | PWinGravity; + sizeh->x = xw.l; + sizeh->y = xw.t; + sizeh->win_gravity = xgeommasktogravity(xw.gm); + } + + XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, + &class); + XFree(sizeh); +} + +int +xgeommasktogravity(int mask) +{ + switch (mask & (XNegative|YNegative)) { + case 0: + return NorthWestGravity; + case XNegative: + return NorthEastGravity; + case YNegative: + return SouthWestGravity; + } + + return SouthEastGravity; +} + +int +xloadfont(Font *f, FcPattern *pattern) +{ + FcPattern *configured; + FcPattern *match; + FcResult result; + XGlyphInfo extents; + int wantattr, haveattr; + + /* + * Manually configure instead of calling XftMatchFont + * so that we can use the configured pattern for + * "missing glyph" lookups. + */ + configured = FcPatternDuplicate(pattern); + if (!configured) + return 1; + + FcConfigSubstitute(NULL, configured, FcMatchPattern); + XftDefaultSubstitute(xw.dpy, xw.scr, configured); + + match = FcFontMatch(NULL, configured, &result); + if (!match) { + FcPatternDestroy(configured); + return 1; + } + + if (!(f->match = XftFontOpenPattern(xw.dpy, match))) { + FcPatternDestroy(configured); + FcPatternDestroy(match); + return 1; + } + + if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) == + XftResultMatch)) { + /* + * Check if xft was unable to find a font with the appropriate + * slant but gave us one anyway. Try to mitigate. + */ + if ((XftPatternGetInteger(f->match->pattern, "slant", 0, + &haveattr) != XftResultMatch) || haveattr < wantattr) { + f->badslant = 1; + fputs("font slant does not match\n", stderr); + } + } + + if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) == + XftResultMatch)) { + if ((XftPatternGetInteger(f->match->pattern, "weight", 0, + &haveattr) != XftResultMatch) || haveattr != wantattr) { + f->badweight = 1; + fputs("font weight does not match\n", stderr); + } + } + + XftTextExtentsUtf8(xw.dpy, f->match, + (const FcChar8 *) ascii_printable, + strlen(ascii_printable), &extents); + + f->set = NULL; + f->pattern = configured; + + f->ascent = f->match->ascent; + f->descent = f->match->descent; + f->lbearing = 0; + f->rbearing = f->match->max_advance_width; + + f->height = f->ascent + f->descent; + f->width = DIVCEIL(extents.xOff, strlen(ascii_printable)); + + return 0; +} + +void +xloadfonts(const char *fontstr, double fontsize) +{ + FcPattern *pattern; + double fontval; + + if (fontstr[0] == '-') + pattern = XftXlfdParse(fontstr, False, False); + else + pattern = FcNameParse((const FcChar8 *)fontstr); + + if (!pattern) + die("can't open font %s\n", fontstr); + + if (fontsize > 1) { + FcPatternDel(pattern, FC_PIXEL_SIZE); + FcPatternDel(pattern, FC_SIZE); + FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize); + usedfontsize = fontsize; + } else { + if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == + FcResultMatch) { + usedfontsize = fontval; + } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) == + FcResultMatch) { + usedfontsize = -1; + } else { + /* + * Default font size is 12, if none given. This is to + * have a known usedfontsize value. + */ + FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12); + usedfontsize = 12; + } + defaultfontsize = usedfontsize; + } + + if (xloadfont(&dc.font, pattern)) + die("can't open font %s\n", fontstr); + + if (usedfontsize < 0) { + FcPatternGetDouble(dc.font.match->pattern, + FC_PIXEL_SIZE, 0, &fontval); + usedfontsize = fontval; + if (fontsize == 0) + defaultfontsize = fontval; + } + + /* Setting character width and height. */ + win.cw = ceilf(dc.font.width * cwscale); + win.ch = ceilf(dc.font.height * chscale); + win.cyo = ceilf(dc.font.height * (chscale - 1) / 2); + + FcPatternDel(pattern, FC_SLANT); + FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); + if (xloadfont(&dc.ifont, pattern)) + die("can't open font %s\n", fontstr); + + FcPatternDel(pattern, FC_WEIGHT); + FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); + if (xloadfont(&dc.ibfont, pattern)) + die("can't open font %s\n", fontstr); + + FcPatternDel(pattern, FC_SLANT); + FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); + if (xloadfont(&dc.bfont, pattern)) + die("can't open font %s\n", fontstr); + + FcPatternDestroy(pattern); +} + +int +xloadsparefont(FcPattern *pattern, int flags) +{ + FcPattern *match; + FcResult result; + + match = FcFontMatch(NULL, pattern, &result); + if (!match) { + return 1; + } + + if (!(frc[frclen].font = XftFontOpenPattern(xw.dpy, match))) { + FcPatternDestroy(match); + return 1; + } + + frc[frclen].flags = flags; + /* Believe U+0000 glyph will present in each default font */ + frc[frclen].unicodep = 0; + frclen++; + + return 0; +} + +void +xloadsparefonts(void) +{ + FcPattern *pattern; + double sizeshift, fontval; + int fc; + char **fp; + + if (frclen != 0) + die("can't embed spare fonts. cache isn't empty"); + + /* Calculate count of spare fonts */ + fc = sizeof(font2) / sizeof(*font2); + if (fc == 0) + return; + + /* Allocate memory for cache entries. */ + if (frccap < 4 * fc) { + frccap += 4 * fc - frccap; + frc = xrealloc(frc, frccap * sizeof(Fontcache)); + } + + for (fp = font2; fp - font2 < fc; ++fp) { + + if (**fp == '-') + pattern = XftXlfdParse(*fp, False, False); + else + pattern = FcNameParse((FcChar8 *)*fp); + + if (!pattern) + die("can't open spare font %s\n", *fp); + + if (defaultfontsize > 0) { + sizeshift = usedfontsize - defaultfontsize; + if (sizeshift != 0 && + FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == + FcResultMatch) { + fontval += sizeshift; + FcPatternDel(pattern, FC_PIXEL_SIZE); + FcPatternDel(pattern, FC_SIZE); + FcPatternAddDouble(pattern, FC_PIXEL_SIZE, fontval); + } + } + + FcPatternAddBool(pattern, FC_SCALABLE, 1); + + FcConfigSubstitute(NULL, pattern, FcMatchPattern); + XftDefaultSubstitute(xw.dpy, xw.scr, pattern); + + if (xloadsparefont(pattern, FRC_NORMAL)) + die("can't open spare font %s\n", *fp); + + FcPatternDel(pattern, FC_SLANT); + FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); + if (xloadsparefont(pattern, FRC_ITALIC)) + die("can't open spare font %s\n", *fp); + + FcPatternDel(pattern, FC_WEIGHT); + FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); + if (xloadsparefont(pattern, FRC_ITALICBOLD)) + die("can't open spare font %s\n", *fp); + + FcPatternDel(pattern, FC_SLANT); + FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); + if (xloadsparefont(pattern, FRC_BOLD)) + die("can't open spare font %s\n", *fp); + + FcPatternDestroy(pattern); + } +} + +void +xunloadfont(Font *f) +{ + XftFontClose(xw.dpy, f->match); + FcPatternDestroy(f->pattern); + if (f->set) + FcFontSetDestroy(f->set); +} + +void +xunloadfonts(void) +{ + /* Clear Harfbuzz font cache. */ + hbunloadfonts(); + + /* Free the loaded fonts in the font cache. */ + while (frclen > 0) + XftFontClose(xw.dpy, frc[--frclen].font); + + xunloadfont(&dc.font); + xunloadfont(&dc.bfont); + xunloadfont(&dc.ifont); + xunloadfont(&dc.ibfont); +} + +void +ximopen(Display *dpy) +{ + XIMCallback destroy = { .client_data = NULL, .callback = ximdestroy }; + + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { + XSetLocaleModifiers("@im=local"); + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { + XSetLocaleModifiers("@im="); + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) + die("XOpenIM failed. Could not open input device.\n"); + } + } + if (XSetIMValues(xw.xim, XNDestroyCallback, &destroy, NULL) != NULL) + die("XSetIMValues failed. Could not set input method value.\n"); + xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, + XNClientWindow, xw.win, XNFocusWindow, xw.win, NULL); + if (xw.xic == NULL) + die("XCreateIC failed. Could not obtain input method.\n"); +} + +void +ximinstantiate(Display *dpy, XPointer client, XPointer call) +{ + ximopen(dpy); + XUnregisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, + ximinstantiate, NULL); +} + +void +ximdestroy(XIM xim, XPointer client, XPointer call) +{ + xw.xim = NULL; + XRegisterIMInstantiateCallback(xw.dpy, NULL, NULL, NULL, + ximinstantiate, NULL); +} + +void +xinit(int cols, int rows) +{ + XGCValues gcvalues; + Cursor cursor; + Window parent; + pid_t thispid = getpid(); + XColor xmousefg, xmousebg; + XWindowAttributes attr; + XVisualInfo vis; + + xw.scr = XDefaultScreen(xw.dpy); + + if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) { + parent = XRootWindow(xw.dpy, xw.scr); + xw.depth = 32; + } else { + XGetWindowAttributes(xw.dpy, parent, &attr); + xw.depth = attr.depth; + } + + XMatchVisualInfo(xw.dpy, xw.scr, xw.depth, TrueColor, &vis); + xw.vis = vis.visual; + + /* font */ + if (!FcInit()) + die("could not init fontconfig.\n"); + + usedfont = (opt_font == NULL)? font : opt_font; + xloadfonts(usedfont, 0); + + /* spare fonts */ + xloadsparefonts(); + + /* colors */ + xw.cmap = XCreateColormap(xw.dpy, parent, xw.vis, None); + xloadcols(); + + /* adjust fixed window geometry */ + win.w = 2 * win.hborderpx + cols * win.cw; + win.h = 2 * win.vborderpx + rows * win.ch; + if (xw.gm & XNegative) + xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2; + if (xw.gm & YNegative) + xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2; + + /* Events */ + xw.attrs.background_pixel = dc.col[defaultbg].pixel; + xw.attrs.border_pixel = dc.col[defaultbg].pixel; + xw.attrs.bit_gravity = NorthWestGravity; + xw.attrs.event_mask = FocusChangeMask | KeyPressMask | KeyReleaseMask + | ExposureMask | VisibilityChangeMask | StructureNotifyMask + | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; + xw.attrs.colormap = xw.cmap; + + xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t, + win.w, win.h, 0, xw.depth, InputOutput, + xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity + | CWEventMask | CWColormap, &xw.attrs); + + memset(&gcvalues, 0, sizeof(gcvalues)); + gcvalues.graphics_exposures = False; + xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, xw.depth); + dc.gc = XCreateGC(xw.dpy, xw.buf, GCGraphicsExposures, &gcvalues); + XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel); + XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); + + /* font spec buffer */ + xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec)); + + /* Xft rendering context */ + xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); + + /* input methods */ + ximopen(xw.dpy); + + /* white cursor, black outline */ + cursor = XCreateFontCursor(xw.dpy, mouseshape); + XDefineCursor(xw.dpy, xw.win, cursor); + + if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) { + xmousefg.red = 0xffff; + xmousefg.green = 0xffff; + xmousefg.blue = 0xffff; + } + + if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) { + xmousebg.red = 0x0000; + xmousebg.green = 0x0000; + xmousebg.blue = 0x0000; + } + + XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg); + + xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); + xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False); + xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False); + xw.netwmiconname = XInternAtom(xw.dpy, "_NET_WM_ICON_NAME", False); + XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1); + + /* use a png-image to set _NET_WM_ICON */ + FILE* file = fopen(ICON, "r"); + if (file) { + /* inititialize variables */ + const gdImagePtr icon_rgba = gdImageCreateFromPng(file); + fclose(file); + const int width = gdImageSX(icon_rgba); + const int height = gdImageSY(icon_rgba); + const int icon_n = width * height + 2; + CARD32 *icon_argb = g_new0(CARD32, icon_n); + /* set width and height of the icon */ + int i = 0; + icon_argb[i++] = width; + icon_argb[i++] = height; + /* RGBA -> ARGB */ + for (int y = 0; y < height; y++) { + for (int x = 0; x < width; x++) { + const int pixel_rgba = gdImageGetPixel(icon_rgba, x, y); + guint8* pixel_argb = (guint8*) &icon_argb[i++]; + pixel_argb[0] = gdImageBlue(icon_rgba, pixel_rgba); + pixel_argb[1] = gdImageGreen(icon_rgba, pixel_rgba); + pixel_argb[2] = gdImageRed(icon_rgba, pixel_rgba); + /* scale alpha from 0-127 to 0-255 */ + const int alpha = 127 - gdImageAlpha(icon_rgba, pixel_rgba); + pixel_argb[3] = alpha == 127 ? 255 : alpha * 2; + } + } + gdImageDestroy(icon_rgba); + /* set _NET_WM_ICON */ + xw.netwmicon = XInternAtom(xw.dpy, "_NET_WM_ICON", False); + XChangeProperty(xw.dpy, xw.win, xw.netwmicon, XA_CARDINAL, 32, + PropModeReplace, (uchar *)icon_argb, icon_n); + } + + xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False); + XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32, + PropModeReplace, (uchar *)&thispid, 1); + + win.mode = MODE_NUMLOCK; + resettitle(); + XMapWindow(xw.dpy, xw.win); + xhints(); + XSync(xw.dpy, False); + + clock_gettime(CLOCK_MONOTONIC, &xsel.tclick1); + clock_gettime(CLOCK_MONOTONIC, &xsel.tclick2); + xsel.primary = NULL; + xsel.clipboard = NULL; + xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); + if (xsel.xtarget == None) + xsel.xtarget = XA_STRING; + + boxdraw_xinit(xw.dpy, xw.cmap, xw.draw, xw.vis); +} + +int +xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y) +{ + float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp; + ushort mode, prevmode = USHRT_MAX; + Font *font = &dc.font; + int frcflags = FRC_NORMAL; + float runewidth = win.cw; + Rune rune; + FT_UInt glyphidx; + FcResult fcres; + FcPattern *fcpattern, *fontpattern; + FcFontSet *fcsets[] = { NULL }; + FcCharSet *fccharset; + int i, f, numspecs = 0; + + for (i = 0, xp = winx, yp = winy + font->ascent + win.cyo; i < len; ++i) { + /* Fetch rune and mode for current glyph. */ + rune = glyphs[i].u; + mode = glyphs[i].mode; + + /* Skip dummy wide-character spacing. */ + if (mode & ATTR_WDUMMY) + continue; + + /* Determine font for glyph if different from previous glyph. */ + if (prevmode != mode) { + prevmode = mode; + font = &dc.font; + frcflags = FRC_NORMAL; + runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f); + if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) { + font = &dc.ibfont; + frcflags = FRC_ITALICBOLD; + } else if (mode & ATTR_ITALIC) { + font = &dc.ifont; + frcflags = FRC_ITALIC; + } else if (mode & ATTR_BOLD) { + font = &dc.bfont; + frcflags = FRC_BOLD; + } + yp = winy + font->ascent + win.cyo; + } + + if (mode & ATTR_BOXDRAW) { + /* minor shoehorning: boxdraw uses only this ushort */ + glyphidx = boxdrawindex(&glyphs[i]); + } else { + /* Lookup character index with default font. */ + glyphidx = XftCharIndex(xw.dpy, font->match, rune); + } + if (glyphidx) { + specs[numspecs].font = font->match; + specs[numspecs].glyph = glyphidx; + specs[numspecs].x = (short)xp; + specs[numspecs].y = (short)yp; + xp += runewidth; + numspecs++; + continue; + } + + /* Fallback on font cache, search the font cache for match. */ + for (f = 0; f < frclen; f++) { + glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune); + /* Everything correct. */ + if (glyphidx && frc[f].flags == frcflags) + break; + /* We got a default font for a not found glyph. */ + if (!glyphidx && frc[f].flags == frcflags + && frc[f].unicodep == rune) { + break; + } + } + + /* Nothing was found. Use fontconfig to find matching font. */ + if (f >= frclen) { + if (!font->set) + font->set = FcFontSort(0, font->pattern, + 1, 0, &fcres); + fcsets[0] = font->set; + + /* + * Nothing was found in the cache. Now use + * some dozen of Fontconfig calls to get the + * font for one single character. + * + * Xft and fontconfig are design failures. + */ + fcpattern = FcPatternDuplicate(font->pattern); + fccharset = FcCharSetCreate(); + + FcCharSetAddChar(fccharset, rune); + FcPatternAddCharSet(fcpattern, FC_CHARSET, + fccharset); + FcPatternAddBool(fcpattern, FC_SCALABLE, 1); + + FcConfigSubstitute(0, fcpattern, + FcMatchPattern); + FcDefaultSubstitute(fcpattern); + + fontpattern = FcFontSetMatch(0, fcsets, 1, + fcpattern, &fcres); + + /* Allocate memory for the new cache entry. */ + if (frclen >= frccap) { + frccap += 16; + frc = xrealloc(frc, frccap * sizeof(Fontcache)); + } + + frc[frclen].font = XftFontOpenPattern(xw.dpy, + fontpattern); + if (!frc[frclen].font) + die("XftFontOpenPattern failed seeking fallback font: %s\n", + strerror(errno)); + frc[frclen].flags = frcflags; + frc[frclen].unicodep = rune; + + glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune); + + f = frclen; + frclen++; + + FcPatternDestroy(fcpattern); + FcCharSetDestroy(fccharset); + } + + specs[numspecs].font = frc[f].font; + specs[numspecs].glyph = glyphidx; + specs[numspecs].x = (short)xp; + specs[numspecs].y = (short)yp; + xp += runewidth; + numspecs++; + } + + /* Harfbuzz transformation for ligatures. */ + hbtransform(specs, glyphs, len, x, y); + + return numspecs; +} + +void +xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y, int dmode) +{ + int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); + int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, + width = charlen * win.cw; + Color *fg, *bg, *temp, revfg, revbg, truefg, truebg; + XRenderColor colfg, colbg; + + /* Fallback on color display for attributes not supported by the font */ + if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) { + if (dc.ibfont.badslant || dc.ibfont.badweight) + base.fg = defaultattr; + } else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) || + (base.mode & ATTR_BOLD && dc.bfont.badweight)) { + base.fg = defaultattr; + } + + if (IS_TRUECOL(base.fg)) { + colfg.alpha = 0xffff; + colfg.red = TRUERED(base.fg); + colfg.green = TRUEGREEN(base.fg); + colfg.blue = TRUEBLUE(base.fg); + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg); + fg = &truefg; + } else { + fg = &dc.col[base.fg]; + } + + if (IS_TRUECOL(base.bg)) { + colbg.alpha = 0xffff; + colbg.green = TRUEGREEN(base.bg); + colbg.red = TRUERED(base.bg); + colbg.blue = TRUEBLUE(base.bg); + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg); + bg = &truebg; + } else { + bg = &dc.col[base.bg]; + } + + if (IS_SET(MODE_REVERSE)) { + if (fg == &dc.col[defaultfg]) { + fg = &dc.col[defaultbg]; + } else { + colfg.red = ~fg->color.red; + colfg.green = ~fg->color.green; + colfg.blue = ~fg->color.blue; + colfg.alpha = fg->color.alpha; + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, + &revfg); + fg = &revfg; + } + + if (bg == &dc.col[defaultbg]) { + bg = &dc.col[defaultfg]; + } else { + colbg.red = ~bg->color.red; + colbg.green = ~bg->color.green; + colbg.blue = ~bg->color.blue; + colbg.alpha = bg->color.alpha; + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, + &revbg); + bg = &revbg; + } + } + + if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) { + colfg.red = fg->color.red / 2; + colfg.green = fg->color.green / 2; + colfg.blue = fg->color.blue / 2; + colfg.alpha = fg->color.alpha; + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg); + fg = &revfg; + } + + if (base.mode & ATTR_REVERSE) { + temp = fg; + fg = bg; + bg = temp; + } + + if (base.mode & ATTR_BLINK && win.mode & MODE_BLINK) + fg = bg; + + if (base.mode & ATTR_INVISIBLE) + fg = bg; + + if (dmode & DRAW_BG) { + /* Intelligent cleaning up of the borders. */ + if (x == 0) { + xclear(0, (y == 0)? 0 : winy, borderpx, + winy + win.ch + + ((winy + win.ch >= borderpx + win.th)? win.h : 0)); + } + if (winx + width >= borderpx + win.tw) { + xclear(winx + width, (y == 0)? 0 : winy, win.w, + ((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch))); + } + if (y == 0) + xclear(winx, 0, winx + width, borderpx); + if (winy + win.ch >= borderpx + win.th) + xclear(winx, winy + win.ch, winx + width, win.h); + + /* Fill the background */ + XftDrawRect(xw.draw, bg, winx, winy, width, win.ch); + } + + if (dmode & DRAW_FG) { + if (base.mode & ATTR_BOXDRAW) { + drawboxes(winx, winy, width / len, win.ch, fg, bg, specs, len); + } else { + /* Render the glyphs. */ + XftDrawGlyphFontSpec(xw.draw, fg, specs, len); + } + + /* Render underline and strikethrough. */ + if (base.mode & ATTR_UNDERLINE) { + XftDrawRect(xw.draw, fg, winx, winy + win.cyo + dc.font.ascent + 1, + width, 1); + } + + if (base.mode & ATTR_STRUCK) { + XftDrawRect(xw.draw, fg, winx, winy + win.cyo + 2 * dc.font.ascent / 3, + width, 1); + } + } +} + +void +xdrawglyph(Glyph g, int x, int y) +{ + int numspecs; + XftGlyphFontSpec spec; + + numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y); + xdrawglyphfontspecs(&spec, g, numspecs, x, y, DRAW_BG | DRAW_FG); +} + +void +xdrawcursor(int cx, int cy, Glyph g, int ox, int oy, Glyph og, Line line, int len) +{ + Color drawcol; + + /* remove the old cursor */ + if (selected(ox, oy)) + og.mode ^= ATTR_REVERSE; + + /* Redraw the line where cursor was previously. + * It will restore the ligatures broken by the cursor. */ + xdrawline(line, 0, oy, len); + + if (IS_SET(MODE_HIDE) || !IS_SET(MODE_FOCUSED)) return; + + /* + * Select the right color for the right mode. + */ + g.mode &= ATTR_BOLD|ATTR_ITALIC|ATTR_UNDERLINE|ATTR_STRUCK|ATTR_WIDE|ATTR_BOXDRAW; + + if (IS_SET(MODE_REVERSE)) { + g.mode |= ATTR_REVERSE; + g.bg = defaultfg; + if (selected(cx, cy)) { + drawcol = dc.col[defaultcs]; + g.fg = defaultrcs; + } else { + drawcol = dc.col[defaultrcs]; + g.fg = defaultcs; + } + } else { + if (selected(cx, cy)) { + g.fg = defaultfg; + g.bg = defaultrcs; + } else { + g.fg = defaultbg; + g.bg = defaultcs; + } + drawcol = dc.col[g.bg]; + } + + /* draw the new one */ + if (IS_SET(MODE_FOCUSED)) { + switch (win.cursor) { + case 0: /* Blinking block */ + case 1: /* Blinking block (default) */ + if (IS_SET(MODE_BLINK)) + break; + /* FALLTHROUGH */ + case 2: /* Steady block */ + xdrawglyph(g, cx, cy); + break; + case 3: /* Blinking underline */ + if (IS_SET(MODE_BLINK)) + break; + /* FALLTHROUGH */ + case 4: /* Steady underline */ + XftDrawRect(xw.draw, &drawcol, + borderpx + cx * win.cw, + borderpx + (cy + 1) * win.ch - \ + cursorthickness, + win.cw, cursorthickness); + break; + case 5: /* Blinking bar */ + if (IS_SET(MODE_BLINK)) + break; + /* FALLTHROUGH */ + case 6: /* Steady bar */ + XftDrawRect(xw.draw, &drawcol, + borderpx + cx * win.cw, + borderpx + cy * win.ch, + cursorthickness, win.ch); + break; + case 7: /* Blinking st cursor */ + if (IS_SET(MODE_BLINK)) + break; + } + } else { + XftDrawRect(xw.draw, &drawcol, + borderpx + cx * win.cw, + borderpx + cy * win.ch, + win.cw - 1, 1); + XftDrawRect(xw.draw, &drawcol, + borderpx + cx * win.cw, + borderpx + cy * win.ch, + 1, win.ch - 1); + XftDrawRect(xw.draw, &drawcol, + borderpx + (cx + 1) * win.cw - 1, + borderpx + cy * win.ch, + 1, win.ch - 1); + XftDrawRect(xw.draw, &drawcol, + borderpx + cx * win.cw, + borderpx + (cy + 1) * win.ch - 1, + win.cw, 1); + } +} + +void +xsetenv(void) +{ + char buf[sizeof(long) * 8 + 1]; + + snprintf(buf, sizeof(buf), "%lu", xw.win); + setenv("WINDOWID", buf, 1); +} + +void +xseticontitle(char *p) +{ + XTextProperty prop; + DEFAULT(p, opt_title); + + if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, + &prop) != Success) + return; + XSetWMIconName(xw.dpy, xw.win, &prop); + XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmiconname); + XFree(prop.value); +} + +void +xsettitle(char *p) +{ + XTextProperty prop; + DEFAULT(p, opt_title); + + if (Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, + &prop) != Success) + return; + XSetWMName(xw.dpy, xw.win, &prop); + XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname); + XFree(prop.value); +} + +int +xstartdraw(void) +{ + return IS_SET(MODE_VISIBLE); +} + +void +xdrawline(Line line, int x1, int y1, int x2) +{ + int i, x, ox, numspecs, numspecs_cached; + Glyph base, new; + XftGlyphFontSpec *specs; + + numspecs_cached = xmakeglyphfontspecs(xw.specbuf, &line[x1], x2 - x1, x1, y1); + + /* Draw line in 2 passes: background and foreground. This way wide glyphs + won't get truncated (#223) */ + for (int dmode = DRAW_BG; dmode <= DRAW_FG; dmode <<= 1) { + specs = xw.specbuf; + numspecs = numspecs_cached; + i = ox = 0; + for (x = x1; x < x2 && i < numspecs; x++) { + new = line[x]; + if (new.mode == ATTR_WDUMMY) + continue; + if (selected(x, y1)) + new.mode ^= ATTR_REVERSE; + if (i > 0 && ATTRCMP(base, new)) { + xdrawglyphfontspecs(specs, base, i, ox, y1, dmode); + specs += i; + numspecs -= i; + i = 0; + } + if (i == 0) { + ox = x; + base = new; + } + i++; + } + if (i > 0) + xdrawglyphfontspecs(specs, base, i, ox, y1, dmode); + } +} + +void +xfinishdraw(void) +{ + XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w, + win.h, 0, 0); + XSetForeground(xw.dpy, dc.gc, + dc.col[IS_SET(MODE_REVERSE)? + defaultfg : defaultbg].pixel); +} + +void +xximspot(int x, int y) +{ + XPoint spot = { borderpx + x * win.cw, borderpx + (y + 1) * win.ch }; + XVaNestedList attr = XVaCreateNestedList(0, XNSpotLocation, &spot, NULL); + + XSetICValues(xw.xic, XNPreeditAttributes, attr, NULL); + XFree(attr); +} + +void +expose(XEvent *ev) +{ + redraw(); +} + +void +visibility(XEvent *ev) +{ + XVisibilityEvent *e = &ev->xvisibility; + + MODBIT(win.mode, e->state != VisibilityFullyObscured, MODE_VISIBLE); +} + +void +unmap(XEvent *ev) +{ + win.mode &= ~MODE_VISIBLE; +} + +void +xsetpointermotion(int set) +{ + MODBIT(xw.attrs.event_mask, set, PointerMotionMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); +} + +void +xsetmode(int set, unsigned int flags) +{ + int mode = win.mode; + MODBIT(win.mode, set, flags); + if ((win.mode & MODE_REVERSE) != (mode & MODE_REVERSE)) + redraw(); +} + +int +xsetcursor(int cursor) +{ + DEFAULT(cursor, 1); + if (!BETWEEN(cursor, 0, 8)) /* 7-8: st extensions */ + return 1; + win.cursor = cursor; + cursorblinks = win.cursor == 0 || win.cursor == 1 || + win.cursor == 3 || win.cursor == 5 || + win.cursor == 7; + return 0; +} + +void +xseturgency(int add) +{ + XWMHints *h = XGetWMHints(xw.dpy, xw.win); + + MODBIT(h->flags, add, XUrgencyHint); + XSetWMHints(xw.dpy, xw.win, h); + XFree(h); +} + +void +xbell(void) +{ + if (!(IS_SET(MODE_FOCUSED))) + xseturgency(1); + if (bellvolume) + XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL); +} + +void +focus(XEvent *ev) +{ + XFocusChangeEvent *e = &ev->xfocus; + + if (e->mode == NotifyGrab) + return; + + if (ev->type == FocusIn) { + XSetICFocus(xw.xic); + win.mode |= MODE_FOCUSED; + xseturgency(0); + if (IS_SET(MODE_FOCUS)) + ttywrite("\033[I", 3, 0); + } else { + XUnsetICFocus(xw.xic); + win.mode &= ~MODE_FOCUSED; + if (IS_SET(MODE_FOCUS)) + ttywrite("\033[O", 3, 0); + } +} + +int +match(uint mask, uint state) +{ + return mask == XK_ANY_MOD || mask == (state & ~ignoremod); +} + +char* +kmap(KeySym k, uint state) +{ + Key *kp; + int i; + + /* Check for mapped keys out of X11 function keys. */ + for (i = 0; i < LEN(mappedkeys); i++) { + if (mappedkeys[i] == k) + break; + } + if (i == LEN(mappedkeys)) { + if ((k & 0xFFFF) < 0xFD00) + return NULL; + } + + for (kp = key; kp < key + LEN(key); kp++) { + if (kp->k != k) + continue; + + if (!match(kp->mask, state)) + continue; + + if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0) + continue; + if (IS_SET(MODE_NUMLOCK) && kp->appkey == 2) + continue; + + if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0) + continue; + + return kp->s; + } + + return NULL; +} + +void +kpress(XEvent *ev) +{ + XKeyEvent *e = &ev->xkey; + KeySym ksym; + char buf[32], *customkey; + int len; + Rune c; + Status status; + Shortcut *bp; + + if (IS_SET(MODE_KBDLOCK)) + return; + + len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status); + /* 1. shortcuts */ + for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) { + if (ksym == bp->keysym && match(bp->mod, e->state)) { + bp->func(&(bp->arg)); + return; + } + } + + /* 2. custom keys from config.h */ + if ((customkey = kmap(ksym, e->state))) { + ttywrite(customkey, strlen(customkey), 1); + return; + } + + /* 3. composed string from input method */ + if (len == 0) + return; + if (len == 1 && e->state & Mod1Mask) { + if (IS_SET(MODE_8BIT)) { + if (*buf < 0177) { + c = *buf | 0x80; + len = utf8encode(c, buf); + } + } else { + buf[1] = buf[0]; + buf[0] = '\033'; + len = 2; + } + } + ttywrite(buf, len, 1); +} + +void +cmessage(XEvent *e) +{ + /* + * See xembed specs + * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html + */ + if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) { + if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) { + win.mode |= MODE_FOCUSED; + xseturgency(0); + } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) { + win.mode &= ~MODE_FOCUSED; + } + } else if (e->xclient.data.l[0] == xw.wmdeletewin) { + ttyhangup(); + exit(0); + } +} + +void +resize(XEvent *e) +{ + if (e->xconfigure.width == win.w && e->xconfigure.height == win.h) + return; + + cresize(e->xconfigure.width, e->xconfigure.height); +} + +void +run(void) +{ + XEvent ev; + int w = win.w, h = win.h; + fd_set rfd; + int xfd = XConnectionNumber(xw.dpy), ttyfd, xev, drawing; + struct timespec seltv, *tv, now, lastblink, trigger; + double timeout; + + /* Waiting for window mapping */ + do { + XNextEvent(xw.dpy, &ev); + /* + * This XFilterEvent call is required because of XOpenIM. It + * does filter out the key event and some client message for + * the input method too. + */ + if (XFilterEvent(&ev, None)) + continue; + if (ev.type == ConfigureNotify) { + w = ev.xconfigure.width; + h = ev.xconfigure.height; + } + } while (ev.type != MapNotify); + + ttyfd = ttynew(opt_line, shell, opt_io, opt_cmd); + cresize(w, h); + + for (timeout = -1, drawing = 0, lastblink = (struct timespec){0};;) { + FD_ZERO(&rfd); + FD_SET(ttyfd, &rfd); + FD_SET(xfd, &rfd); + + if (XPending(xw.dpy)) + timeout = 0; /* existing events might not set xfd */ + + seltv.tv_sec = timeout / 1E3; + seltv.tv_nsec = 1E6 * (timeout - 1E3 * seltv.tv_sec); + tv = timeout >= 0 ? &seltv : NULL; + + if (pselect(MAX(xfd, ttyfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) { + if (errno == EINTR) + continue; + die("select failed: %s\n", strerror(errno)); + } + clock_gettime(CLOCK_MONOTONIC, &now); + + if (FD_ISSET(ttyfd, &rfd)) + ttyread(); + + xev = 0; + while (XPending(xw.dpy)) { + xev = 1; + XNextEvent(xw.dpy, &ev); + if (XFilterEvent(&ev, None)) + continue; + if (handler[ev.type]) + (handler[ev.type])(&ev); + } + + /* + * To reduce flicker and tearing, when new content or event + * triggers drawing, we first wait a bit to ensure we got + * everything, and if nothing new arrives - we draw. + * We start with trying to wait minlatency ms. If more content + * arrives sooner, we retry with shorter and shorter preiods, + * and eventually draw even without idle after maxlatency ms. + * Typically this results in low latency while interacting, + * maximum latency intervals during `cat huge.txt`, and perfect + * sync with periodic updates from animations/key-repeats/etc. + */ + if (FD_ISSET(ttyfd, &rfd) || xev) { + if (!drawing) { + trigger = now; + if (IS_SET(MODE_BLINK)) { + win.mode ^= MODE_BLINK; + } + lastblink = now; + drawing = 1; + } + timeout = (maxlatency - TIMEDIFF(now, trigger)) \ + / maxlatency * minlatency; + if (timeout > 0) + continue; /* we have time, try to find idle */ + } + + /* idle detected or maxlatency exhausted -> draw */ + timeout = -1; + if (blinktimeout && (cursorblinks || tattrset(ATTR_BLINK))) { + timeout = blinktimeout - TIMEDIFF(now, lastblink); + if (timeout <= 0) { + if (-timeout > blinktimeout) /* start visible */ + win.mode |= MODE_BLINK; + win.mode ^= MODE_BLINK; + tsetdirtattr(ATTR_BLINK); + lastblink = now; + timeout = blinktimeout; + } + } + + draw(); + XFlush(xw.dpy); + drawing = 0; + } +} + +#define XRESOURCE_LOAD_META(NAME) \ + if(!XrmGetResource(xrdb, "st." NAME, "st." NAME, &type, &ret)) \ + XrmGetResource(xrdb, "*." NAME, "*." NAME, &type, &ret); \ + if (ret.addr != NULL && !strncmp("String", type, 64)) + +#define XRESOURCE_LOAD_STRING(NAME, DST) \ + XRESOURCE_LOAD_META(NAME) \ + DST = ret.addr; + +#define XRESOURCE_LOAD_CHAR(NAME, DST) \ + XRESOURCE_LOAD_META(NAME) \ + DST = ret.addr[0]; + +#define XRESOURCE_LOAD_INTEGER(NAME, DST) \ + XRESOURCE_LOAD_META(NAME) \ + DST = strtoul(ret.addr, NULL, 10); + +#define XRESOURCE_LOAD_FLOAT(NAME, DST) \ + XRESOURCE_LOAD_META(NAME) \ + DST = strtof(ret.addr, NULL); + +void +xrdb_load(void) +{ + /* XXX */ + char *xrm; + char *type; + XrmDatabase xrdb; + XrmValue ret; + Display *dpy; + + if(!(dpy = XOpenDisplay(NULL))) + die("Can't open display\n"); + + XrmInitialize(); + xrm = XResourceManagerString(dpy); + + if (xrm != NULL) { + xrdb = XrmGetStringDatabase(xrm); + + /* handling colors here without macros to do via loop. */ + int i = 0; + char loadValue[12] = ""; + for (i = 0; i < 256; i++) + { + sprintf(loadValue, "%s%d", "st.color", i); + + if(!XrmGetResource(xrdb, loadValue, loadValue, &type, &ret)) + { + sprintf(loadValue, "%s%d", "*.color", i); + if (!XrmGetResource(xrdb, loadValue, loadValue, &type, &ret)) + /* reset if not found (unless in range for defaults). */ + if (i > 15) + colorname[i] = NULL; + } + + if (ret.addr != NULL && !strncmp("String", type, 64)) + colorname[i] = ret.addr; + } + + XRESOURCE_LOAD_STRING("foreground", colorname[defaultfg]); + XRESOURCE_LOAD_STRING("background", colorname[defaultbg]); + XRESOURCE_LOAD_STRING("cursorfg", colorname[defaultcs]) + else { + // this looks confusing because we are chaining off of the if + // in the macro. probably we should be wrapping everything blocks + // so this isn't possible... + defaultcs = defaultfg; + } + XRESOURCE_LOAD_STRING("reverse-cursor", colorname[defaultrcs]) + else { + // see above. + defaultrcs = defaultbg; + } + + XRESOURCE_LOAD_STRING("font", font); + XRESOURCE_LOAD_STRING("termname", termname); + + /* XRESOURCE_LOAD_INTEGER("xfps", xfps); */ + /* XRESOURCE_LOAD_INTEGER("actionfps", actionfps); */ + XRESOURCE_LOAD_INTEGER("blinktimeout", blinktimeout); + XRESOURCE_LOAD_INTEGER("bellvolume", bellvolume); + XRESOURCE_LOAD_INTEGER("borderpx", borderpx); + /* XRESOURCE_LOAD_INTEGER("borderless", borderless); */ + XRESOURCE_LOAD_INTEGER("cursorshape", cursorshape); + + /* cursorblinkstate = 1; // in case if cursor shape was changed from a blinking one to a non-blinking */ + /* XRESOURCE_LOAD_INTEGER("cursorthickness", cursorthickness); */ + /* XRESOURCE_LOAD_INTEGER("cursorblinkstyle", cursorblinkstyle); */ + /* XRESOURCE_LOAD_INTEGER("cursorblinkontype", cursorblinkontype); */ + + /* todo: https://github.com/gnotclub/xst/commit/1e82647b0e04077e975679a4b4cf1eb02b04e6bc */ + /* XRESOURCE_LOAD_INTEGER("mouseScrollLines", mousescrolllines); */ + + XRESOURCE_LOAD_FLOAT("cwscale", cwscale); + XRESOURCE_LOAD_FLOAT("chscale", chscale); + + /* XRESOURCE_LOAD_CHAR("prompt_char", prompt_char); */ + + } + XFlush(dpy); +} + +void +reload(int sig) +{ + xrdb_load(); + + /* colors, fonts */ + xloadcols(); + xunloadfonts(); + xloadfonts(font, 0); + + /* pretend the window just got resized */ + cresize(win.w, win.h); + + redraw(); + + /* triggers re-render if we're visible. */ + ttywrite("\033[O", 3, 1); + + signal(SIGUSR1, reload); +} + +int +resource_load(XrmDatabase db, char *name, enum resource_type rtype, void *dst) +{ + char **sdst = dst; + int *idst = dst; + float *fdst = dst; + + char fullname[256]; + char fullclass[256]; + char *type; + XrmValue ret; + + snprintf(fullname, sizeof(fullname), "%s.%s", + opt_name ? opt_name : "st", name); + snprintf(fullclass, sizeof(fullclass), "%s.%s", + opt_class ? opt_class : "St", name); + fullname[sizeof(fullname) - 1] = fullclass[sizeof(fullclass) - 1] = '\0'; + + XrmGetResource(db, fullname, fullclass, &type, &ret); + if (ret.addr == NULL || strncmp("String", type, 64)) + return 1; + + switch (rtype) { + case STRING: + *sdst = ret.addr; + break; + case INTEGER: + *idst = strtoul(ret.addr, NULL, 10); + break; + case FLOAT: + *fdst = strtof(ret.addr, NULL); + break; + } + return 0; +} + +void +config_init(void) +{ + char *resm; + XrmDatabase db; + ResourcePref *p; + + XrmInitialize(); + resm = XResourceManagerString(xw.dpy); + if (!resm) + return; + + db = XrmGetStringDatabase(resm); + for (p = resources; p < resources + LEN(resources); p++) + resource_load(db, p->name, p->type, p->dst); +} + +void +usage(void) +{ + die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]" + " [-n name] [-o file]\n" + " [-T title] [-t title] [-w windowid]" + " [[-e] command [args ...]]\n" + " %s [-aiv] [-c class] [-f font] [-g geometry]" + " [-n name] [-o file]\n" + " [-T title] [-t title] [-w windowid] -l line" + " [stty_args ...]\n", argv0, argv0); +} + +int +main(int argc, char *argv[]) +{ + xw.l = xw.t = 0; + xw.isfixed = False; + xsetcursor(cursorshape); + + ARGBEGIN { + case 'a': + allowaltscreen = 0; + break; + case 'A': + opt_alpha = EARGF(usage()); + break; + case 'c': + opt_class = EARGF(usage()); + break; + case 'e': + if (argc > 0) + --argc, ++argv; + goto run; + case 'f': + opt_font = EARGF(usage()); + break; + case 'g': + xw.gm = XParseGeometry(EARGF(usage()), + &xw.l, &xw.t, &cols, &rows); + break; + case 'i': + xw.isfixed = 1; + break; + case 'o': + opt_io = EARGF(usage()); + break; + case 'l': + opt_line = EARGF(usage()); + break; + case 'n': + opt_name = EARGF(usage()); + break; + case 't': + case 'T': + opt_title = EARGF(usage()); + break; + case 'w': + opt_embed = EARGF(usage()); + break; + case 'v': + die("%s " VERSION "\n", argv0); + break; + default: + usage(); + } ARGEND; + +run: + if (argc > 0) /* eat all remaining arguments */ + opt_cmd = argv; + + if (!opt_title) + opt_title = (opt_line || !opt_cmd) ? "st" : opt_cmd[0]; + + setlocale(LC_CTYPE, ""); + XSetLocaleModifiers(""); + xrdb_load(); + signal(SIGUSR1, reload); + + if(!(xw.dpy = XOpenDisplay(NULL))) + die("Can't open display\n"); + + config_init(); + cols = MAX(cols, 1); + rows = MAX(rows, 1); + signal(SIGUSR1, reload); + tnew(cols, rows); + xinit(cols, rows); + xsetenv(); + selinit(); + run(); + + return 0; +} diff --git a/xresources b/xresources new file mode 100644 index 0000000..534451c --- /dev/null +++ b/xresources @@ -0,0 +1,49 @@ +Xft.antialias: 1 +Xft.hinting: 1 +Xft.autohint: 0 +Xft.hintstyle: hintslight +Xft.rgba: rgb +Xft.lcdfilter: lcddefault + +st.font: JetBrainsMono Nerd Font:style:medium:pixelsize=13 + +! window padding +st.borderpx: 20 + +!- 0.1 to 0.9 = transparency +st.alpha: 1.0 + +*background: #181f21 +*foreground: #dadada + +! Black + DarkGrey +*color0: #22292b +*color8: #575e60 + +! DarkRed + Red +*color1: #e06e6e +*color9: #ef7d7d + +! DarkGreen + Green +*color2: #8ccf7e +*color10: #9bdead + +! DarkYellow + Yellow +*color3: #e5c76b +*color11: #f4d67a + +! DarkBlue + Blue +*color4: #67b0e8 +*color12: #6cb5ed + +! DarkMagenta + Magenta +*color5: #c47fd5 +*color13: #ce89df + +! DarkCyan + Cyan +*color6: #6da4cd +*color14: #67cbe7 + +! LightGrey + White +*color7: #b3b9b8 +*color15: #bdc3c2